I know 30 seems old to you, but it's not in terms of fertility. I didn't start having children until 30. Had my last at 41. Lol. I know!!! What a shocker!!! My youngest is a perfectly healthy baby boy. Mom to 3 boys here.
I would not be pregnant in nursing school. It's too much, trust me on that. Had a miscarriage in nursing school. Being pregnant was hard first of all. The exhaustion and nausea were awful. The miscarriage was terrible. I had clinicals and tests while I was having the miscarriage and immediately after when I was a mess trying to grieve. I wanted to give up and quit. Fortunately I had a professor who wouldn't let me.
Graduate, get a job, then get pregnant when you build up FMLA time. It's not awful to have a baby at 30, I promise!!!!