Family Planning and DMT

Hi everyone, I'm looking to get some advice. Yes I've researched and yes I've spoken to my MS nurse about this.
I am nearly 32. We wanted to start trying for a baby last year, however I had a big relapse in June (didn't know at the time) and then was diagnosed with MS in August. I was told not to start trying until we spoke to the specialists, which I was happy to do.

However I've only just had my first MS nurse appointment last week! I've been given 4 DMT options. All obviously not liscened and proven to be safe during pregnancy.

I've been given mixed advice on this.
I'm considering the Ocrevus injection. I need to decide by Thursday as I have my phone call appointment.

I would appreciate any advice.

Thank you