Had my period but I feel like I am pregnant?

Hello! So me and my boyfriend have sex daily, sometimes twice and each time we have sex he cums at least twice. Well, before my period I had been getting naseus, heat flashes, my boobs hurt, sometimes cramps, headaches, really bad backaches, and it's a day after my period and I'm still feeling all of those things. Before we had sex my CM was creamy and white. And earlier I had sneezed and this clear water fluid rushed out of my vagina. Sorry for the TMI. I'm just confused. Really confused. Any help!?