Help!!! 😢

Just looking for anyone that may have been in my situation and had a healthy baby. I had a early miscarriage in July and due to having very low progesterone numbers my oB wanted to test them when I got pregnant again. We found out a couple of weeks ago we are expecting our rainbow baby( currently 6 weeks) My first draw my progesterone was 15 and doc was happy with that. Now two weeks later it has dropped to 7.94. I am so devastated. He started me on supplements today. I feel very pregnant and this week morning sickness has kicked into full gear. I have had no cramping or spotting. I am just so worried that this will turn into another miscarriage. Anyone out there have dropping progesterone numbers but ended up with a healthy pregnancy.