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





We have been have regular unprotected sex for almost two years and we have still yet to conceive. there are no medical problems on either side, his sperm is healthy so is my eggs. what else can we try that might help? trying to do everything natural with out medical intervention been charting my periods and b.b. temp we both have been taking vitamins eating healthy, cut out alcohol, cut back on smoking, trying to quit completely. we just want a baby so bad and it hurts that we’ve been trying so hard with no luck
Hi angel, there are a lot of tips in this post, please check it out
I had unprotected sex with my boyfriend four days before my period. Now, I’m three days late. Is it possible that I’m pregnant? Well, it’s not really an unprotected sex. We are just rubbing each other’s private parts.
If there was no penetration and he did not ejaculate inside you then the chances of being pregnant would be low. It’s not impossible, but it is very unlikely for women to get pregnant just before a period.
I want to have a baby and my ovulation happened two days ago can I stil get pregnant?
Hello, No try having unprotected sex days before you ovulate and also on the days you are ovulating!
i have been cramping for almost 4 days. Saturday night I bled just a bit, Sunday i spotted very little and today I woke up and without getting to the bathroom I said to myself “there it is,” but when I went to bathroom NOTHING not even when i wiped, I have such a small amount of a rosey discharge I wouldn’t even say I am really spotting anymore. Has anyone ever had this? I researched and it says early signs of pregnancy, I only had sex once and he did not ejaculate in me. HELP!
Hello, If the sex was unprotected you could still be pregnant by precum that spotting could have been implantation bleeding take a pregnancy test.
I had unprotected sex after 4 days of my fertility window. is there any chances of getting pregnant?
yes, it’s possible, especially if you have a shorter menstrual cycle
Hi I been having unprotected sex for almost a month could I be pregnant
yes, of course. use birth control if you don’t want to end up being pregnant
I had unprotected sex 3 days after my my period and 3 days later I’m feeling tired and sleepy even if I had enough sleep. Can I be pregnant?
Hello, Yes it is possible as you can get pregnant anytime after unprotected sex.
I had sex on 3rd and 4th day of my periods. After that I had an i-pill, actually my 1st period was started on Nov 19th and also 28th of that same month I had a 2nd period. Will I get pregnant? Because I was not getting my periods on 19th or 28th of Dec. Please answer to my question and reply to me, how to control pregnancy by medicines with your best advice.
If I had unprotected sex 7 days before my period is expected will I miss my period if I’m pregnant or will I miss the next period?
you will miss the first next period if you conceived
hi, my boyfriend and I had sex a couple of days after my last period which was November 19,2015. throughout December as well, my period was supposed to come December 19. it’s been a week and it hasn’t came. we had unprotected and protected sex, he pulled out through the times we had unprotected sex. my period is usually irregular but recently has had a date which is the 19. i’m not sure if i’m pregnant.. I get cramps as if I’m getting my period but it doesn’t come. advice please.
Hi, Once you have unprotected sex you stand a chance to get pregnant,try taking a pregnancy test to find out.
Take a test the dollar tree has them and are very accurate.
I had sex on November 28th/29th which started off unprotected. I believe my period was November 11th- or the 13th was the start day. According to my period tracker I had sex the day after I ovulated. I had sex again on December 8th, protected. Started my period on December 11th and it ended December 17th. I had sex on December 19th unprotected which is one day before I become fertile and 5 days before I ovulate. On December 23rd I went to the bathroom and had light pink blood. Today, the 24th it was brown in color and I’ve had some cramping. Could this be implantation bleeding? If I am pregnant, what could be the possible day of conception? Is the 19th too close to have implantation bleeding start 4 days after unprotected sex?
Hello, Yes you could be pregnant, Implantation bleeding typically happens seven to ten days after ovulation, but it can happen a few days earlier or later as well. so it would be hard to tell the exact time you conceived if you become pregnant.
I’ve took 2 pregnancy tests they have both come back that I’m not pregnant, it’s my 31st day, I’ve not come on, am i pregnant or not. i really want to be ?
ive took 2 pregnancy test its my 31st day am i pregnant or not, i really want too?
I had unprotected sex day before my period. Next morning I had a period I thought I shouldn’t take any pills. Because I had a period. I read some similar posts. But I’m really confused now should I get pregnant. Today is only 7th day he ejaculated inside me and my period just finished today.
Hi, You can get pregnant anytime after unprotected sex even while on your period if you are not on birth control its possible to get pregnant anytime.
I saw my period 14-17 December and i had unprotected sex 18&22 could i get pregnant
My last period was Nov 24 to 30. I had unprotected sec Dec 6 and again 13th. I should have started my period Dec 22. Am I pregnant?
Hello, The only way to know if you are pregnant is to take a pregnancy test you had unprotected sex so its very possible for you to be pregnant.