Is this feeling normal?

I recently just went through a miscarriage and my fiancé & I both really want to try again for another baby but the fear of miscarrying again is weighing heavy on us. We are both 20, and as crazy as it may sound we just feel ready. We both are extremely blessed to have good paying jobs and we're almost done with college. We know that our main focus should be college (which it is) but we just can't get over this baby fever, is this normal after having a miscarriage?