help pleaseeee 😔

I started my period on the 24-28 of last month well my ovulation day was when I had sex and he so happened to cum inside me. Well it's 2 weeks after the ovulating and i was supposed to start my period on the 23rd I'm 3 days late, I've had head aches cramps and mucus (not discharge, I know the difference) and my sleeping schedule is way off. Please let me know your opinionsÂ