I'm not bleeding as heavy as normal and usually have really bad cramping but don't have any this time. I've been feeling sick in the mornings the past week and have thrown up twice, but I was switched from Omeprazole to Prilosec a couple weeks ago, could that be the reason? I had unprotected sex and he didn't pull out almost exactly a month ago now. Please someone answer soon! Should I take a test? Do I have to wait until I stop bleeding first?