Just got off BC

I stopped taking my BC the second week in January right before my period started. Since then, everything has been fine. Starting on the day of my ovulation (24th), my uterus feels really really heavy. There’s minor pain/uncomfortableness when i sit down and a constant slight annoyance all the time since that day. My CM was like egg whites the day of and day after ovulation and has been watery ever since. I’m also really tired and

EXTREMELY emotional. By no means do i assume I’m already pregnant only 4dpo but I’m just so confused as to why i feel this way?