Cramps watery discharge feels like period?

So af was supposed to come 3/28 according to period tracker . Didn't show, but glow said today 3/30 I was expected to start, still nothing. I took one 2 days ago & it might've been a faint line but others said it was an Evap. Took one today when my period was due & can't get anymore negative . I added to glow that my period didn't come & it moved back a week so I'm supposed to start on cd 40? When I was on birth control seven months ago my periods were every 29 days so this is not normal for me. They've changed a bit from coming off bc & now they're every 30 days & the last was 33 . Today is the cd 33 so wouldn't I have my period or get a positive by now? My cycles are never 40 days ever . My cousin got a negative with these cheapies but clear blue gave her a positive . Any ideas? My boobs hurt where my milk glands are only, which never happens, I picked up my friends baby & just the pressure of her legs hurt . & im having cramps like period but a lot less & extremly clear/white watery discharge that feels like I'm bleeding, I keep thinking I'm starting . Help please?