Looking for any insight, confused on what's happening...

Gabrielle • Married my best friend 9-20-14 & mommy to a beautiful little girl ❤️
I know this might be TMI in some cases but I had brownish discharge during ovulation time. I am now 20 DPO and the past two times my husband and I engaged in intercourse I have had light pink spotting right after than it completely disappears. Can anyone help with their experiences/info?