C.T.
In addition to what Jill wrote you may want to consider trying to use a natural progesterone cream to try to get pregnant. I have worked with several women using this method over clomid or IUI, which happens to be cheaper and safer. I am 12 weeks pregnant now by using the cream. I have fertility issues - it took me two years to have my son before I learned about progesterone. The fact that you miscarried tells me there is a possibility your progesterone is low. Low progesterone is one of the big causes of miscarriage and also a reason for difficulty in getting pregnant.
Jill is right on track too. Having a good diet and your weight being healthy is very important. ALl of the information she provided is excellent.