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]

Photo: Bigstock.com
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





I had unprotected sex two days before ovulation which was the 17th and the day before ovulation which was the 18th and the day of ovulation which was the 19th of this month.I’m suppose to get my period on the 3rd of next month how long should I wait to take a pregnancy test
If you haven’t already, take a test. Especially if your period is late.
5 days after your missed period is a good time for most test, like First Response. But not all test are this accurate. If you cannot wait longer than 5 days I would definitely recommend getting a First Response test.
My last period was July 8-11. My partner and I had unprotected sex july 25. He pulled out before but i’m still nervous. It’s two weeks until my period and i don’t know what to do.
I’ve had unprotected sex about 8 times this month. Keep in mind that it’s been 2-3 times within each day. I also just realized I had sex twice during my fertile week. The day before and after my ovulating day. What are the chances of me getting pregnant, if I’m not already?
will i get pregnant if i’m having my periods right now ? And i had sex 1& 1/2 week ago ? We had unprotected sex and then i ate a pill for not getting pregnant after that day then after taking the pill i had protected sex next day ? Are there any chances that i could be pregnant ?
Most likely you are not pregnant. It is very unlikely to conceive while having your period.
I had unprotected sex a week ago. He didn’t ejaculate inside of me but I’m scared I might be pregnant. My periods are very irregular I haven’t had one for a year now so I don’t know if I’m ovulating. I remember my doctors telling me I can’t get pregnant that the lining in my uterus is very thin. Anyway after I had sex I’ve been having weird stomach pain and just started having lower back pain.
Your symptoms may not necessarily relate to a pregnancy, but you may need to consult your doctor based on your underlying medical situation.
I had unprotected sex while I was on my periods. My last periods was on 30 July. Can I get pregnant?
My first day of my period was July 19th and I was wondering if we had sex last night is there any chance of me being pregnant and it’s day 11 of my cycle? Am I fertile to try?
Yes, now is a good time to try. If you have a 28 days cycle, you will be fertile from July 29 to August 2.
I had unprotected sex with my boyfriend and my period is supposed to start August 2, my ovulation days were July 14-19. Can I still get pregnant?
You can get pregnant once you have sex on your fertile days. You are also at risk of becoming pregnant if you have sex at least 2 days before your ovulations days.
I had unprotected sex on Friday 24 and we did it several times he knew when he had to take it out and after he was done we would continue so it was non stop through the whole night and then I had unprotected sex again on Monday 27 and it was the same as on Friday except we didn’t take the whole night and I haven’t had my period what are my chances of getting pregnant.? I need to know so I can know what to do.
My last period ended on 30th June and I had unprotected sex on 11th July. I took a post pill but I still haven’t had my period. Pls, could I be pregnant?
It appears you had sex just before your fertile days (July 12 to July 16) and this would increase your chances of getting pregnant. How soon after July 11 did you take the post pill? With most of these pills, it is best to take it within 48 to 72 hours; the sooner it is taken the more effective it will be. The pill is also known to delay the period. It’s best to wait until August 1 to take a pregnancy test.
I have an almost by the book 28 day cycle..according to my period tracker i ovulated on june 19thh and had unprotected sex on the 21st.i did get my period on july 3rd as predicted so this is probably a very dumb question but is that the period if pregnant id have missed or the following?because i was always under the impression when u test positive u are already 5 or 6 weeks .
I had my last period in June and it ended on the 14th so I had it on the 7th. I recently had unprotected sex twice and I’m really scared that I have a chance of being pregnant I really don’t want to what should I do.
My last period ended July 13 and I had unprotected sex, but he pulled out and I’m really scared of getting pregnant. What are my chances?
My boyfriend and I had unprotected sex for literally less than 30 seconds on Monday (we realized we had to stop right away). He didn’t finish inside me. I got my period June 12 and haven’t gotten it since, I’ve always been really irregular. Yesterday, I got what seemed like the beginning of my period, but its only been really dark and dry discharge. Today its a little heavier but still no blood. Is there any chance of me being pregnant?
Mine was literally lest than 30 seconds too. It happened last night and i’m nervous not knowing if i will be or not
I have 28-35 days cycle.I had an unprotected sex July 3 then I got my period July 7, it lasted for 6 days. Four days after my period, I had unprotected sex again. Then July 25 we had an unprotected sex again. Is it possible that I got pregnant? Please help.
I have been having unprotected sex with my girlfriend but I stopped and ejaculated out side of her and cleaned my self then continue having sex. Can she still get pregnant?