Should I have another baby?

Au
My husband and I got married last year, we have our own house and he has a great job, we've been together for about five years and counting. We both have daughters from previous marriages, mine lives with us and his lives with her mom. We've been talking about having a baby of our own, but I've just been so back and forth about it. We feel ready for a baby, in theory the timing is pretty great. 
But, my daughter will be in first grade this year and we're finally out of the baby stage, she's pretty independent and I feel so torn about starting all over again. I want to experience pregnancy and having a baby with him, I think it would be amazing. We've been pregnant before, but we have miscarried a few times already, so that's another reason I'm worried.
I just don't know what to do. I want this, but then sometimes I don't know if I want to start all over. How did you ladies decide that expanding your family was the right decision? Can anyone offer me any advice?