Question about after removal Please Respond!!!

Erika🌼
I've been ttc for about 7 months now. I have been extremely regular since I got off of it however, my period is always extremely light now. So light that I can't use a tampon. And it only last 3 days and the third is just spotting here and there..
I'm wondering if this could be effecting my fertility...
Anyone have any suggestions or experience with this?