normal for taking birth control?

I started birth control (Apri/combination pill) about two weeks ago, and my boobs are REALLY sore and seemed to have grown, I'm getting more discharge, my appetite changes frequently and I'm really really bloated there's a lot of pressure in my stomach. 
They obviously tested me for pregnancy before putting me on the pill, so these aren't pregnancy symptoms right?
I'm also panicking because when I push on my lower stomach sometimes I can feel a bump or a ridge, I'm thinking that's my bladder but the possibility that it's my uterus is scary too. I'm kind of a hypochondriac. Please help!