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





Hello my name is Kelsey. I had unprotected sex August 17, 18 and 19. My period started August 4 and ended on Aug 9. Am I pregnant?
If you have a 28 days cycle then you would have ovulated during August 16 to 20. This means that the possibility of you being pregnant is high.
I normally have a period cycle of 30-38 days.. my last month period was on 21st July.. had unprotected sex on 9 Aug so took a contraceptive pill on the same day.. I had my last period from 20-25 Aug.. but had unprotected sex on 23rd Aug ( 4th day of menstruation) .. I did not bleed much this time.. I don’t know y but this may b the 1st time That I did not bleed much.. thought it was because of the pill.. bt again I had unprotected sex on my 4th day.. is there any chance that I might get pregnant?? I don’t want to right now.. should I take another contraceptive pill? plz I need ur help.. what should I do?? m desperately in need of your advice..
Taking another contraceptive pill may not help. You need to determine the date of your next period and wait to see if it will come. Taking a pregnancy test this early may not give the most accurate results.
I had unprotected sex a day before I noticed I was ovulating, could I have gotten pregnant?
Yes. Sperms can live within a woman’s body for up to five days depending on the cervical conditions. Having unprotected sex days before you ovulate will surely increase your chances of becoming pregnant.
OK, my girl is pregnant.. I know that for sure..we had unprotected sex June 29th she missed her period which always came like clock work on the 12th of July.. And before that we had sex . may 30th.. But it was protected.. People (mostly females) are telling me she wouldn’t have missed her period so early she would have had it…they have been telling me she may have been cheating or something before hand…and my girl is acting very distant…its like I don’t know what to believe untill I get the facts…
Hey I had my period August 14 an I have a 28 day cycle an me an my hubby’s trying to convince an we has sex this past Friday Saturday an Sunday night an I looked at ovulation calculator an it said I’m gonna ovulate this Thursday August 27 you think I can get pregnant. I already have two boys trying for a girl I read online said to have sex 5 to 3 days before ovulation.
Hello Ashleigh, The only way to know for sure is to have sex and wait and take a test.
I need your help , I had unprotected sex on the two days before of my period, the 29 and 30 could I be pregnant , even though my period came as I am having tender breast and mood swings , my period was on the 31july to 5th August.
Hi Rosey, It unlikely that you are pregnant but you can take a pregnancy test to be sure.
Please advise me. I had unprotected sex with my girlfriend during 6-7 days after her period…Sex duration was only 2 minutes. What are the chances of being pregnant? Please advise me.
The chances of her being pregnant will depend on her menstrual cycle and the how long the period lasted. Six to seven days after her period ended could possibly be the time she is ovulating. A woman usually ovulates from days 12 to 14 before the next period begins. Note also that unprotected sex, irrespective of the length of time that the act takes, will always increase the risk of pregnancy.
Hi. please I need help. My flow has been regular for quiet sometime now and by calculation my ovulation was 10th of August. I had unprotected sex on the 14th and now am two days late. could I be pregnant?
Yes, it is possible because it’s highly likely that you were still ovulating at that time.
Hi i had unprotected sex with ma gf after few days of her periods….later she had her next periods at her regular time….will there be a possibility of getting pregnant?
Hello Nithin, If she has gotten her period after unprotected sex she is not pregnant.
pls help..
my gf ended her period on the 19th of august and we had sex on the 22nd of august what is her chance of getting pregnant
Hi me and my bf had our first sex last Aug. 15 he forgot to bring a condom so he used a plastic ice bag. My last period started on July 26 and ended on aug 3. I am supposed to have my period last Aug. 23. I am 4 days late. Am i pregant? Please help me!
Question i and my boyfriend have been having unprotected sex as soon as i was off my period is the a chance i could get pregnant im a few days away from ovulation
of course, there’s always a chance of getting pregnant when you have unprotected sex. please use contraception if you don’t want to get pregnant
Hello, my boyfriend and I have been having unprotected sex for a few seconds everyday then he puts a condom it’s been going on for almost a month, is there any chances I can be or get pregnant by it???? ????
It is unlikely but possible. In rare cases, a few sperms may be released into a male’s “precum” and this can result in a pregnancy. Any form of unprotected sex will put you at risk.
My question is I had my period on 8/17 and ended 8/21. I had unprotected sex on 8/24 and today 8/25 noticed the mucus, meaning that I am ovulating, does this mean that I may be pregnant?
If your period is regular and you have a 28 days cycle then it possible that you were not ovulating at that time. It is possible for you to have a vaginal discharge that is not related to ovulation.
I have very irregular periods. Every month my period is is a different day. It is hard for me and o track my ovulation because of it.
In that case, this post will guide you on how best to predict when you’re ovulating – http://womanjunction.com/?s=ovulation+predictor
I have unprotected intercourse on 17 th august ..i took norethisterone to postpone my periods from august 19 th to 23 rd ..i dint get my periods yet ?? my expected period is on 27 th august ..any chances of me becoming pregnant ??
I had unprotected sex with my bf 10 days before my period, i.e. if my period was on 15 and I had sex on 5, my period date was 15 and it delayed and after 5 day ie on 19 july. I had my period. Now it’s been 30 days, still I didn’t get my period. Is there any chance to be pregnant?
If your period is that late, you need to take a pregnancy test for confirmation.