AF 11 days late

CPS • Baby girl - 1/8/19😍

AF is 11 days late. I’ve taken 4 tests.. all negative. I started spotting on Friday. Spotted a little bit yesterday and I did see a tiny bit of red blood but now its back to nothing. Do y’all think this is the beginning of AF? This throws a huge wrench into TTC next month... I’ve also had some pain near where my right ovary would be. Any thoughts?