Okay, this is my first post so lmk if i miss anything. And sorry for the long post.

Backstory: I took my IUD out (a hormonal one) March 4th after we decided to TTC. I had a tiny amount of blood, then I got my period March 7-10. While i was on my IUD I basically stopped menstruating so i stopped tracking but before that my cycle was 27-29 days. Pink pad and glow say I ovulated on the 20th, or CD 14(?)

Anyway, I had unprotected sex on the 11th, 13th, 16th, 17th, 18th, and 20th. On the 21st I had a mild headache which is uncommon for me but I didn't pay attention to it. Then on the 22nd, I still had a headache, then that morning when I went to the bathroom I wiped and had a weird pinkish brown transparent slippery discharge (never had it before, I've tracked for a long time, my period is usually just cherry red to dark red and I haven't spotted mid cycle since I was pretty young) it was never enough to leak onto a pad and it lasted like 8 hours and towards the end got more pink and less brown and fainter and fainter.

Started out the color on the left and ended up somewhere between the last 2.

After it went away my headache started getting worse and worse and I got extremely nauseated. after trying to deal with it for a couple hours I just went to bed without dinner and laid as still as I could and tried to fall asleep so it would be over.

Now it's the next day, 23rd, and I feel fine so far. I did some searching and I guess the weird colored discharge could be implantation bleeding, and I know nausea and headaches can be early symptoms of pregnancy. But is it even possible to get symptoms like that 2 days after ovulation?? Do you think I ovulate on a different day? or is this all a really weird coincidence?

Thanks all :)