any suggestions? please Help!

Hi, Everybody. I got
Pregnant once in my life back in high school.
Didn't keep the baby which feels
Like the worst decision I could
Have made in my life. Was with a guy in college for over five years. Never got
Pregnant. While me and the x was together I was unhappy, partied a lot so I don't know if that blocked my chance. Now I'm with a new guy. We just started trying. I really wanna have a healthy baby. Any suggestions? Please
Help!