AF late and still no BFP.

Tsenia
Okay so AF is 3 days late now and I took a test this morning but it wasn't my first peepee and it was negative. Furthermore I have this white creamy discharge going on and constantly going to bathroom since New Years day. the app has been spot on with my AF and ovulation so idk what to think. I have two but I found out with them at 6 & 8 weeks. Any thoughts or advice on this would be GREATLY appreciated