The pill

Hey guys I had sex with my partner yesterday and I’m on my pill and I have been taking it correctly all along I’m due my period in four days but I’m a bit worried because my stomach has been unsettled this month and Ive been going to the bathroom a lot and this morning I had bad diarrhea but it was 13 hours after I took the pill and I’m a bit worried about pregnancy but he never came in me I’m more worried about pre cum