I had my egg retrieval on 12/6 and a fresh Day5 3 embryos blastocyst transfer on 12/3

Today is 8 days past and it started with spotting light pink and never stopped and now it got a bit red in color !

Negative pregnancy test this Am.

I don’t get my beta till Friday ..

I’m also on progesterone so technically I shouldn’t start my period either.

Did anyone experience something like this ? And got a positive results after ?

I feel like I’m starting my period but the nurses told me I shouldn’t even if it failed cuz of the progesterone I’m on !

Please help !