hcg is low

Veronica
Hey ladies! So in May I had a MC at 6 weeks. My hcg was only at a 50. I got pregnant again this month and I want to say I'm between 3-4 weeks. They did labs to make sure everything was going well. My first results were hcg 22 and progesterone 24.6 they wanted me to be above 15 with my progesterone. I did another lab test they wanted to see my hcg go up to 60. Got my results yesterday and it only went up to 26. She said in the beginning of the pregnancy sometimes this happens so I have to go back for another test to see if anything changes. Have any of you experienced this before and hcg suddenly improved? Please y'all pray for me! I'm so nervous can't sleep much.