preseed and early spotting

Autumn • 3 furbabies, TTC first baby 😁

so I used preseed 3 days ago when ttc with my husband. and now 2 days after my ovulation, I'm spotting. I know it's much too early for implantation bleeding... but I'm highly confused as to why this is happening now. last month my period started a whole week early and I got super excited that it might be implantation bleeding but when it lasted more than 3 days... :/

I dont know if this has happened to anyone else and this is my first time ttc. any thoughts?