im 22, just recently found out i was pregnant.. the man i have been with for the past year does not want anything to do with the baby and said it's either abortion or i dont want to be with you. so fine. toodles.. so now im a single mom, terrified because its my first.. if i could get any advice it would be great, like what should i be eating or doing or w.e. to help not have a miscarriage, etc.