Low fetal heart rate...

Celina • After 10 yrs of TTC we have become pregnant with #2, we are so blessed to have another chance at parenthood
Saw our dr today first prenatal visit our ultrasound showed our baby had a HR of 108 bpm. I had blood work done just waiting on results she said it could be low progesterone, has this happened to anyone I'm afraid I'm going to miscarry