I’m on the pill (combination) and I started my new pill pack late and missed a few pills, that week end (1st feb) I had unprotected sex and he came in me. My pill break was supposed to be on Tuesday. 3 days later and No bleed. I took a test but it was neg. is there a chance I tested too early?? Should I try and test again next week? My periods come on time like clock work every month.