Ok this is my first time being on birth control pills. I'm 18 years old. Well I had my period n I started taking them. They made me moody n upset me so I told my doctor n I stopped taking them. Well my husband came back from deployment the 23-27 n we had unprotected sex the whole time he was here. He left n I started feeling a little weird more hungry, potting often with shirt distance of each other. So I took a pregnancy test it was negative on the 7th. On the 9th I got my period but it's horrible I hurt. Really bad, I'm puking a lot n my nose is stuffy I keep sneezing 24-7. I'm just wondering could I be pregnant? I need help please!!!