Low cervix all of a sudden

Addie

I’m due August 5th I’m 4w6d today and I woke up with terrible back pain. As I was putting in the vaginal progesterone I felt the stick won’t go in as far as it did yesterday meaning my cervix got low. Low cervix and intense backpain around this time usually means miscarriage in 5 days for me. I wanted this to finally be my rainbow after 4 miscarriages already I’ve suffered enough. I’m taking 200mg progesterone and 40mg lovenox baby aspirin prenatal vitamin d fish oil daily for the first time (I just took prenatal for all previous miscarriages). This is so frustrating. I don’t think being a mom is in the works for me. God really doesn’t want this for me. Any insight ? Advice ? U/s dec 9 but i usually miscarry right before then.