A lot of us would have wondered about this question to ourselves, and probably thought we have an exact answer to this. Well, the correct answer is “Yes, you can, but no, you probably won't”. However, the probability is very low, so read on about what we have to say.
First, you have to understand how the menstrual cycle works. During menstruation, the endometrium, the inner lining of the uterus, is removed. On the first day of your periods, the level of your hormones decreases, and the menstrual blood circulates this endometrial lining out of the uterus through the cervix. You will be ovulating on the 14th day of the regular menstrual cycle.
Then Can I Get Pregnant During My Period?
Apart from being very messy and undesirable, having sex on your period also isn't likely. The chances of you getting pregnant would be highest in the middle of your ovulation cycle, and higher before and after your period than during.
Although it is very unlikely that you might get pregnant, some women actually have. When you are on your period, your days of ovulation will still be far away. However, there are some exceptional cases. The American Pregnancy Association states that if your period cycles are smaller than 28 days or are irregular, you can become pregnant during your period. This is because the duration of time between periods and ovulation is small.
Now, sperm can last for 4-5 days in your body. Your day of ovulation will come earlier because your menstrual cycle is short. So, if you have sex on the last day of your periods, then the sperm can fertilize with the egg and you can become pregnant. The APA Association states that "If you are pregnant, it's likely that you are likely to be pregnant with periods."