So confused 🤔 I should be on day 5 of my period today and haven't had them yet.

I did a pregnancy test Monday got a negative and done one this morning but it wasn't with my first morning wee, I can see a very faint line and I would of thought by now my levels would be high enough to be darker its never been this faint in all my other pregnancies usually get 2 bright pink lines by the first day of missed period (5 living children 8 pregnancies all up 9 if I'm pregnant now)