I'm late, but to scared to take a test

Maritza • I’ve been a young mom, a married and started a family mom, then a geriatric mom of twins, now a grandmother, I’ve evolved in motherhood many times
I'm usually a day 27 period girl and that was on Tuesday. Our doctor diagnosed us with low morphology and pcos, it seems impossible to get pregnant naturally, but not sure why I'm late. Need some words of advise