Hey there...I have a very peculiar case. You see I haven't had sex. Only foreplay with my boyfriend (fingering, oral). The very first time was right after my period. Then we continued until I heard the disturbing news that such activities involved a risk of pregnancy. Thing is I became VERY anxious and waited for my period but I started noticing heavy sore breasts that I squeezed and a drop of liquid came out. The nerves made me nauseous so I took a test. a day before my due period. It was negative. I missed my period then got it a day late. After that the syntoms went away but I was still anxios because I read of women who were pregnant and got their periods. My period ended but the bloating hasn't gone away. As far as I see the only syntom I have is that I am getting really fat....I mean I wasn't a supermodel before, but I was much slimmer.
If your really concerned you can go to a local clinic and usually* get a free prego test.