Congratulations on your pregnancy. I miscarried my first pregnancy and gave birth to a healthy baby on my second. I think miscarriage messes with your head and your self confidence at some *core* level, and now might be about the most difficult time to try to work on these issues. I think it would be enough to get through every day without falling apart in anxiety or giving up having any sense of mastery over your body or your life.
Pregnancy after miscarriage is, in my experience, very de-stabilizing. It just brought me to my knees, made me feel about as competent as an idiot (well, until I had the baby, and those things tend to generate feelings of incompetency as well).
You have a lot on your plate. It sounds like you could use some more support.