HOT FLASHES?? I'm only 24

So I had unprotected sex with my BF on the 17th the last day of my period but the day b4 my fertile window. We had sex again the 19th (2nd day of my fertile window) a week later my nipple started leaking white stuff and has been off n on since then. I have white discharge but nothing outside the norm for me. I'm now 2 days late for my "new cycle" no cramps or sign of a period plus I'm really emotionally horny (like one min I'm horny the next I'm not)  and I have weird hot flashes. I want to wait till I'm 5 days late but new symptoms keep popping up. Mind u it's 45-50 degrees where I live and it's been windy AF. Idk if I'm getting sick if I'm pregnant or if this is about to b the period from Satan himself 👹 I'm like a professional sleeper too so that's nothing new however I find myself not able to get comfortable right away.. Anything similar with u pregnant ladies or ladies who have had kids b4?