Me and my boyfriend had unprotected sex 2 nights ago and he nutted in me 2 times now my stomach been feeling strange am I pregnant?

Its too early to tell, your stomach upset is probably cause by anxiety over the possibility of being pregnant.

You'll have to wait and see if you get your next period or not. The only way to know for sure will be to take a pregnancy test, but most tests aren't accurate until around the time of your first missed period.

Unless you are trying to become pregnant you should begin using protection and once you confirm whether you are pregnant you may want to discuss hormonal birth control options with your doctor as well.

As has been said, two days ago would make it too early for the sperm to meet the egg. So there is no way yet to know whether you are pregnant.