When you are having sex, pregnancy is always a real possibility. Sex, like other fun activities, comes with certain risks if you are not using protection, with STI’s and unwanted pregnancies being the most obvious ones.
If you want to know what’s the chance of getting pregnant if you had unprotected sex you have come to the right place.
Like others, you will hear many rumors about where and when you could get pregnant. For some women, the thought of getting pregnant is met with great joy and anticipation, while for others it’s a cause of worry.
This is why most women in the reproductive age or the ones who are trying desperately to conceive will have many questions or doubts about their chances of conceiving.
We will look further at this below to help you understand more about unprotected sex and pregnancy.
What’s the Chance of Getting Pregnant If You Had Unprotected Sex
There is a good chance that you could get pregnant nearly any time that you engage in sexual intercourse without using an effective birth control. This scenario is familiar to most women.
Pregnancy usually occurs around the ovulation period, the time when your ovary releases egg in the fallopian tube. If you are having regular periods, ovulation will take place midway between your menstrual periods.
Ovulation usually happens midway between the first-day of 2 consecutive periods, but this can vary from the eight day to the twentieth day of a 28-day cycle.
Researchers calculate the average risk at varying times in a monthly cycle of a woman, but you should know that your risk can be lower or higher.
You cannot know the definite time of your ovulation, which is why the researchers use the monthly cycle of a woman when calculating the average risk for pregnancy.
Figuring Out the Chances of Getting Pregnant If You Had Unprotected Sex
You are more likely to conceive if you have unprotected sex during the middle 2 weeks of your cycle. The time varies, but many women ovulate about day 14.
You will have the highest risk of pregnancy by having unprotected sex one or two days before your ovulation starts; when the ovary releases the egg.
This is a 30% chance. The risk of having unprotected sex and getting pregnant three days prior to ovulation is 15%. You will have a 12% chance on the ovulation day. [1]

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In the real world, large studies show that women who engage in unprotected sex during mid-cycle have a much lower chance of getting pregnant as the risk is around 5.8%.
This is because you will have a much lower risk of getting pregnant if you engage in any sexual relations on the ovulation day and any day besides the three days prior to.
Not Getting Pregnant After Having Unprotected Sex for Months
There are times when having unprotected sex is not enough for you to get pregnant. You could be doing this for months with no luck.
Thankfully, there are certain things that you could do to increase your chances if it’s taking longer than expected for you to conceive.
This includes doing thinks like monitoring your ovulation, using an ovulation predictor kit, charting your basal body temperature, as well as checking and observing your cervical mucus.
When you have an idea of your ovulating time, you can start to time your sexual activities around that period. If you are using this method, you must ensure that you are having sex 2 days before your ovulation day or every other day during the week of your expected ovulation. This will boost your chances of conceiving.
If it’s a case where you have been engaging in unprotected sexual activities for more than six months without success, you could visit your doctor or ob/gyn to know about the alternative treatments that you could use for fertility problems. There are several solutions available and they are very effective.
How to Know When You Get Pregnant
The most common sign of pregnancy after unprotected sex is missed period. However, this missed or late period is not a sure sign as there are many other things that can cause it besides pregnancy.
This includes using birth control that contains hormones, stress, sickness, improper eating habits, or too much exercise.
It is pretty common for teens to have periods which come later than normal or missed periods because it could take several years for them to have a regular cycle.
So, the best way for you to know if you are pregnant is to do a pregnancy test. These are easy to get nowadays because they are available at drugstores or health centers.
It is important to note that the home pregnancy tests are ninety-nine percent accurate if taken after you miss a period.
Hopefully, you will now know what’s the chance of getting pregnant if you had unprotected sex.
Do you have a question about your period, ovulation, pregnancy or other related topic? Check out our Frequently Asked Questions page.
Wondering if you’re pregnant? Try our Online Pregnancy Quiz and get a rough estimate of your chance of being pregnant.
Read this post to learn more about when is the right time to take a pregnancy test.
References
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1. http://www.thedoctorwillseeyounow.com/content/womens_health/art3356.html





Hi! I had sex with my bf October 28th and we use withdrawal method but then he withdrew late so I guess there were some sperms inside me. My last period was Oct 8 and I have a 30 days cycle. Do you think I’ll be pregnant? Thanks.
Hello. You ovulated from October 22 to 26 and it is possible to become pregnant 1-2 days after ovulation.
I had unprotected sex on the 7th of OCtober, I was fertile beginning on the 9th and Ovulating on the 14th. I was supposed to get my period on the 28th. Is there a possibility that I could be pregnant?
Hey i started my period on the 15 i had sex on the 26 my fertile days started on the 24 is their a chance i could be pregnant
Yes, it is possible since you had sex during your fertile days.
Last month I got my periods two times first on 23rd September as my dates are during that time only but again on 5th October for only two days I got periods and on 17th October I had unprotected sex with my boyfriend but he ejaculated outside and today is 28th October. Until now I have not got my periods but white dischrge is coming from last 3-4days…Do you think I am pregnant…please answer!
Hi,It is possible for you to be pregnant anytime after unprotected sex that’s why its always better to use a contraceptive method that would help prevent pregnancy. White discharge could mean a lot of things.Take a pregnancy test preferably in the morning when you wake.
I had sex with my bf last oct 19 in a pulling method or withdrawal, my last period is Oct 6 and I have 30 days cycle period. Is there a chance that I’m pregnant?
You ovulated during October 20 to 24. The chances of being pregnant would be low – especially since he withdrew. Remember that it is always possible for sperms to be ejaculated prematurely before or during the withdrawal process.
i’m not sure mam if it’s on oct 6 or oct 7 my first day. i just remember that oct 6 i have a brown spot den in the afternoon it fades, den oct 7 it bcome heavy as my normal cycle. any of that 2 dates is there a chance that i am pregnant?
My past period was either 05/1/15 or 04/30/15 and I believe I have a 30 day cycle. I had unprotected sex may 6, May 9th, may 18 & may 20th. I am pregnant but which day do you think I could have conceived including that I didnt think that I could get pregnant if I have sex 3-5 days before my first fertile window?
Hi, You can get pregnant at anytime after unprotected sex even while on your period,It would be hard to tell the exact day you conceived because no one knows when the egg got fertilized and implanted itself in your uterus.
Hi. My last period was on 4th of october and ended after five days. I have 28 days cycle and now october 28, 2015 i just had sex with my boyfriend. Is there aby possibilities that i will get pregnant? Please help me im getting paranoid. This is the first time he didnt use condom.
If you have a regular 28 days cycle and you had a period on October 4, then the next one was due on October 17, 2015. Did you have a period then? You need to take a pregnancy test to rule out pregnancy. Once it is negative then you can take the Postinor morning after pills immediately – do not let 2 days pass before you take them.
Hello, on a 28 cycle. First day of my period was October 5th and ended October 11′ 2015. Had unprotected sex on October 14th and 17th. Doctor has me on medroxyprogesterone, which I take 7 days before my next period. Can I be pregnant and is it safe to continue this med. thanks for your help in this matter.
I had my period 10/9-10/14…had unprotected sex the 18 &19..what are my chances of being pregnant?
Your chances of being pregnant depend on whether you were fertile on or around the date that you had sex. It is important to know the number of days in your menstrual cycle and whether you have regular or irregular periods. This information is needed to provide you with the most accurate response.
My cycle is 28 days andvyes my periods are regular
I had unprotected sex on October 27th, and my period will start on November 1st, do I have chances of conceiving?
Your chances of being pregnant depend on whether you were fertile on or around the date that you had sex. It is important to know the number of days in your menstrual cycle and whether you have regular or irregular periods. This information is needed to provide you with the most accurate response.
Hi, I had my period on 7th October till 9th October, and had sex on 26th October, is there any chance of getting pregnant?
Hello. Your chances of being pregnant depend on whether you were fertile on or around the dates that you had sex. It is important to know the number of days in your menstrual cycle. This information is needed to provide you with the most accurate response.
hello i had unprotected sex with my boyfriend after i cleared my period so after 14 days i took a pregnancy test showing negative result giving relief. Now the last date was 31st septof period now its 29th oct i usally get my period 4-5 days prior to the date..n still i havent got my period so m really tensed…am i pregnant or just delay of cycle? pls help
You can get the most accurate result if you wait at least one week after missing your period. In addition, the result might be even more accurate if the test is done first in the morning as the urine is far more concentrated at this time. The urine-based home pregnancy tests offer great accuracy.
hi,
my period came on 3rd of October and i had unprotected sex on 12th October ,could i be pregnant?
Regards
sam
Hello my period started October 5th and lasted for 6 days me and my boyfriend had unprotected sex on October 18th and he ejaculated in me. What are my chances of being pregnant …
??
I had unprotected sex with my bf then two weeks later I was on my period is it possible that I’m pregnant?
Hi, my period started september 24, 2015 and ended around september 27 or 28 and I just had unprotected sex october 3 and october 18, Is there a high or a low chance for me in getting pregnant? Iām feeling kinda paranoid.
Your chances of being pregnant depend on whether you were fertile on or around the date that you had sex. It is important to know the number of days in your menstrual cycle. This information is needed to provide you with the most accurate response.
TTC!! I started my period on Oct 12 and ended Oct 17. My cycles are 28 days give or take this one was 28 anyhow, my bf and I had sex on Oct 22 so that would make it cd 11, right?? My question is can I get pregnant on cd 11, 3 days before ovulating? I also had egg white cm Oct 24-25.
Thanks, BABY DUST TO ALL!!! š