Prog. Low at 5 weeks. Is it too late to start? 😨

My midwife called be today saying she is concerned with my progesterone because it was only at 5.3 and they said it needs to be closer to 20. But she said my hcg is doubling every 1.4 days and is currently 1553. They want to start me on prog. asap. But im freaking out that it may be to late and im going to lose this pregnancy 😭

Has anybody gone through this at 5 weeks and still gone on to have a healthy pregnancy?

On one hand im happy to know what's likely been causing all of my losses but on the other hand I cant emotionally handle another one right now.