So I had unprotected sex on March 17 (Friday) but my partner only penetrated for 5 seconds and then stopped with no full ejaculation. I was scared that I might've gotten
pregnant from pre-ejaculation but I got my period on March 19 and it was a normal 7 days long period. I then got another period on April 17 which was also a normal one and just to confirm it, I took a urine
pregnancy test on April 18 around 1:40 PM and it was negative. I know the chances are almost impossible but I just wanted to ask you if I can be pretty sure that I'm not pregnant. I also have irregular period cycles that range from 28-31 days if that adds any important information.