Late but Negative 😕

Hey there - my husband and I have been TTC for a few weeks now (super early in the journey, I know). I’m coming up on 5 days now past my period, but have taken 3 different tests that all say negative.

Is this normal? Have you experienced it? At what point do I go see a dr. to see what’s up? (And do I go to a GP or a GYN for this?)