Nervous

Naeome • 26, 1 miscarriage 5-10-15
So I had a mc in early May and my cycle schedule didn't change at all. My doctor said to wait 3 cycles before trying but my SO and I weren't actively trying with my first one. Af was scheduled yesterday and still hasn't shown up. We haven't been really preventing from getting pregnant again and I'm nervous to tell him I'm late. What should I do?