miscarried twice--doing heparin shots now that I'm pregnant again. What are the odds of having a healthy baby

[Jenni B]

I have one healthy son(whose 3) and have miscarried twice. I just found out I am pregnant last week (been trying for 2 years for the second baby) and I'm overjoyed--but also so scared of losing this baby again. Anyone have a similar story? I've been seeing a specialist who realized I had all 3 clotting disorders--hence the heparin (my insurance didn't cover lovenox!). I also am taking progesterone supplements. I don't have a lot of symptoms--just sore breasts...which is a side effect of progesterone. My HCG levels were great--but I'm just freaking out!!