18 days late!

Sally

I’m currently on cycle day 52 and period is 18 days late.

I came off the pill in June 2022, body has struggled and cycle have been irregular but never this late!

Around when I was due for AF I had all the symptoms but never started, stayed around since nausea, crampy etc then disappeared now back but no AF

Had one small patch of bright red blood when I was about 6 days late which is strange for me and nothing since.

Have tested daily and all neg until this line today, is this what an Evap line looks like? Done 2 since and all neg. So confused what is going on!