Hello doctor,I was trying to put a condom on but I was doing it upside down then I flipped it and wore it. I am worried that while trying to put it in the wrong way, some semen might have got on to the condom. Is it possible to make her pregnant or the sperm dies in just a few seconds when they come in contact of the open air? I already had ejaculated once in my pants before. So it was not a precum that might have contacted the condom.
Hi, Welcome to Chat Doctor forum. The sperm does not die as soon as they expose to open air. If the condom contains the sperm on the outer side, then it can cause pregnancy. As you mentioned that it was not just precum, but it was semen. So, if it was semen or sperm on the condom then they can cause pregnancy. If your partner was in her fertile period when you had sex, then there are chances of pregnancy. If she was not in the fertile period, then the pregnancy is unlikely. So, verify her fertile period.  Also, the emergency contraceptive pill can be used within 72 hours of sex, to avoid pregnancy. Ask her to check it, and you can also check for pregnancy when her period is due or almost after two weeks, that she is pregnant or not. If her pregnancy test return to be positive even then there is an option to terminate it, after consulting with your doctor. 