CD 40 & late

Jillian • Happy wifey💍 TTC #1 🤰🏻 Puppy momma 🐶

So, I have PCOS and my period is a week late. I know it doesn’t seem long, but with my metformin my cycle is usually 31-33 days and today I’m CD 40. I took one HPT last week and it was negative... should I hold out or call the doctor?

I worry because of the chances of miscarrying with PCOS