Spotting 2 days after ovulation

Leanne

Hi guys, soooo me and my husband are ttc. I had a missed miscarriage at 11 weeks in November. I have had 1 period since then so we started trying again. This month according to this app I ovulate on Saturday and then monday- Tuesday for about 24 hours I had light spotting.

Has anyone else had this or know why this happens?