I think I might be pregnant. I had sex about 4 months ago, and I haven't thrown up anyway, I had my period, but I pee every 30 mintues without drinking anything. My stomach is starting to look bigger, and I'm hungry all the time. Is there a condition where you don't have a normal pregnancy or what? Can I be pregnant and not know it? But just get bigger without having the normal signs?

Wise to check with your doctor to maybe have some testing done. An unknown pregnancy happens on occasion, but it could be a thyroid issue, diabetes related, change in metabolism, etc..