So basically me and my boyfriend are long distance and we have a lot of sex in the weeks we visit each other I'm not on any kind of birth control we just use condoms and try to have sex on the days that I'm least likely to get pregnant I guess that is a kind of birth control ? Can't think of the name so anyways. Today is February 2nd my boyfriend and I last day of our trip I. Was still on my period and we had sex with a condom January 9tj but the condom came off in the middle of the sex and we didn't notice for like 10 minutes, but we did before he came so we stopped and like and on the 16 th of January I had some bleedingg in my underwear which I wonder if that's implantation bleeding since my period is late now.and also I went to the Dr on the 22nd for a routine check-up and they did a pregnancy test which was negative but I figured it would be since it's so early but I read somewhere online that they count the weeks of the baby as the first day of your last period which means if I am pregnant then I would've been around 2 weeks at that point idk anyways my period is one day late and I have been cramping which is normal before my period but it feels a little different and I've been craving milkshakes the past 2 weeks and I've drank at least 5 maybe I'm being paranoid but yeah so what do y'all think?