Period late, negative pregnancy test.

So today is my CD 36 I am currently 3 days late but all test says negative taken with first morning pee. But I'm also thinking I ovulated really late because I didn't see egg white cervical mucus until February 8th, there wasn't a lot but you could see it when I wiped. Is it possible to ovulate this late only 4 days before due period? We are really wanting baby #2 we've experienced 2 miscarriages in the past year and I'm thinking I may be pregnant but just ovulated super late. I'm trying not to get my hopes up but it's really putting me down lately that we've lost 2 pregnancies. The last one my body concieved 4 gestational sacs but non of them developed. My dr believes my body just couldn't handle that many. Anyone else going through this? Also usually right before my period I don't really have any CM and my body is producing a lot right now. It's white but really wet so curious if anyone has input for that as well. Tonight I thought I started my period but it was just that. Any input would be greatly appreciated. Sorry for dragging on.