A month ago I thought I was pregnant because Precum was on my vagina and 7 days later I got my period. I've recently noticed that my nipples have been getting darker and I have no idea why. I'm afraid it's the pregnancy thing but I already had my period and it's really unlikely that I've gotten pregnant with Precum. Everywhere online it says it's pregnancy but I'm hopeful that that is not the case. (If it helps, I'm 15)