conflict

Hey girls,How do you deal with the worries in your mind that you are taking things into your hands and not letting God do what he wants? Everytime I  get excited about doing a cycle I worry that I have to come up with the money, and that if its that hard then I am not leaving it in God's hands.  I worry that I am putting too much faith in doctors and not God to get me pregnant. Then I think well if I don't do nothing for 3 or 4 years will I just "get pregnant?" I am so conflicted sometimes. WOuld do you think?