please please help!

Anna
Hello! My husband have been trying since May of 2016. We had a CP in August. My doc ran some labs on me this month and my progesterone at 7ishDPO was 7.3. I know that's on the lower side. Tonight I got a faint BFP! Yay! But I'm nervous about the progesterone. I plan on calling my doctor as soon as they open. Advice.'??? I'm so so happy but can't imagine going through another loss.