So I'm currently 7 dpo(according to this app) and me and my man had sex frequently this month. My uterus today jus kinda felt different. Sore, maybe. It was cramping yesterday. I've been getting bad headaches too n last night I woke up from sleep with a stomach ache. Been more tired than usual. But the kicker here is it feels like a band is wrapped around my head and I was thinking maybe sinuses but it just started a few days ago!