Confused...advice?

Stacie • Im 27...In a relationship. Love my partner to the moon and back. Been together two years and trying to conceive baby number 1 🍼👍❤

So according to glow my period is now 3 days late. According to blood tests I did ovulate this month. I took the ovulation tests and got a smiley face showing peak fertility on the 14th of sept.. (Day 13 of my cycle) so 12-24 hours after that I know I ovulated. However, I've taken 3 clear blue pregnancy tests and they all were BFN's.

Should I go see my ob/gyn today and do a blood test?