Im 16, my boyfriend is 18. I had sex with 14 days before my period,and we used a condom halfway through.my period came a week late, we did it On my period unprotected,he didn't "withdraw",my period stopped for a couple days then started again. Then I had sex with him later on that month,which happened to be my most fertile day,he pulled out at the last second. Since then I've been really nauseated all day especially mornings,I can't eat anything before 2 p.m. I'm always tired and especially irritable. I'm always hot and have constant headaches,could I be pregnant.

You do know that "pulling out" does not work well at all, there is plenty of sperm in all the early fluids to make you pregnant. So it only lowers the amount of sperm, does not stop it at all.

So yes it sounds really like you are trying to get pregnant, since most sex is unprotected, and even with a condom they have a 3 to 10 percent failure rate.

So have to wait till about 2 weeks past the period date to do a pregnancy test.