How to thicken your lining.

I would appreciate any advice on how to thicken my uterine lining. I have had a few losses and I think this is the cause. My last cycle I was 4 and a 1/2 weeks pregnant and when I miscarried I only blood for 2 and a 1/2 days before it stopped and confirm my levels were back. Down at 0. I would really like to have a. Where I actually have to use a patter a tampon and I would really like to keep a pregnancy.