Infertility and Miscarriage

Just had my 3rd miscarriage in 7 months, I am getting a bunch of blood work done, and an ultrasound to find out what's going on. I apparently have a small uterus and something else that's preventing me from having a healthy pregnancy that makes it full term. I know it's hard for people to understand when they've never been through this. But people can be so hurtful! I've had multiple people tell me "at least you know you can get pregnant" seriously?!?!