I recently had a UTI so I had sex unprotected on saturday night as I think I may be allergic to condoms. I'd taken my contraceptive pill that morning but forgot it on sunday and monday morning but on Monday evening I took both Sunday's and Monday's pill. I started bleeding on the same monday afternoon and today (tuesday) it still hasn't stopped. Could this be implantation bleeding as I had a period a week and a half before the unprotected sex? Am I pregnant? He took it out before he came but he may have came a little bit in me. I am so scared as I DO NOT want or need a baby. When is the earliest I can take a pregnancy test?