I had sex on the 1st, we used condoms, but I was really nervous about being pregnant. I got my period around 11 days later but it was lighter than usual, still I started my bc on the first day of my period. The period got a little heavier, but not like usual, and ended after 3 days(normally my period is 5-7). Two days passed, no blood then yesterday my period started again.

Is this possible pregnancy or reaction to my BC? I assumed maybe my body was under stress because i’ve been taking other medications as well, as i was sick and also have an acid reflux situation.