I know there are threads in the pregnancy and birth loss forum of moms ttc after a loss- you might want to post there...
So sorry for you loss. I know there are many many women who have miscarriages for unknown reasons and go on to have healthy pregnancies. If you feel worried, you should make an appointment with your OB/GYN. It might give you a lot of peace of mind and answer any questions you have.
Peace,
Laura

Peace,
Laura