Am I pregnant or just freaking out

I started the pill on August 26. This is when I started up my period again since I had a chemical pregnancy earlier, which put me in the decision of birth control. Well I'm having slight cramps on my left side and I'm freaked out because it was one the symptoms I had that let me know my body was off and feeling weird and I took a pregnancy test and was pregnant. I'm nervous about being pregnant again. I had sex with a condom the day before I started back up on my period but some of it spilled on me down there. And we recently had sex without a condom because it should be safe since it had been a week with me on birth control during my period. I'm just nervous and not sure if this cramping is normal.