When glow says my period due yesterday

Question

Glow on my iPhone says period due yesterday and on android says 21st but entered details from android onto iPhone I forgot password to other account which one do I go off

Answer

When was your last period and how many days is your average cycle?

Answer

Well from my android my cycles are33 days average yes I'm trying to conceive so it's through me off but going to wait to see it af arrives from other dates x

Answer

I guess the later one? If glow says yesterday and it didn't show up yet... Are u TTC?