mskitty,
if i could i would like your post but i can't so i'm gonna say it, i liked your post!
Prenatals might help, as will a healthy lifestyle.
I'm sorry you've had such a rough time. You can see a doctor for fertility testing and treatments, including drugs like Clomid or HcG injections. I'm not aware of anything that you can just get at the drugstore.
With your past trouble, if you get pregnant again you should be monitored carefully to see what might be causing the problem. There's nothing a doctor can do for developmental problems with the baby, but there are surgeries and hormonal treatments that might help your body.
if you find such a pill please let me know! thanks!
My sister was wanting a baby and the dr told her go take prenatal vitamins.