Progesterone levels are 4 weeks

My last pregnancy ended at 5 weeks with a progesterone level of 4, even while on suppositories. I’m pregnant now, about 4 weeks and I had progesterone tested and it was 11.4. Hcg was 71. My doc said anything below 10 is bad but goal is over 20. I know that I’m not at 10 or below, but 11.4 is too close for comfort, especially with 3 miscarriages. My doc seemed okay with the numbers, but I’m just having a hard time getting excited this time because of the previous losses. Anyone have progesterone that low that ended well?