Trying so hard to have patience.

I got pregnant with my son at 15 on a fluke. I was on birth control and happened to be on antibiotics, took one time and bam. Now I am 24 years old, his father and I are married, I am a nurse his dad is a machine operator, we make a good living. And for the life us cannot seem to have another baby. We got pregnant three months after trying and then had a second trimester miscarriage. We’re on month 6 from the miscarriage and no luck. I am trying to hard remain patient and trust the process.