I am blessed not to suffer from depression, but my sister does, and was monitored in her pregnancy, most particularly as the medication she took had a small risk of causing heart problems (my nephew is fine, just had a few more scans than a normal bub). BTW she didn't have an OB and had a homebirth, but lives OS, so probably that info isn't as relevant.

I think whilst it's reasonable to let a Mum who suffers from depression know they are more likely to suffer from PND, like FlyingButter says, I think there are a few more questions to be asked here as I can't see why she would stop you from going to a midwife clinic - surely they would decide if they couldn't help you. An IVF pregnancy is no different from any other as you know all too well - just the beginning is different. It might be that indeed you need to find another GP who is more confident in helping you, as it seems she doesn't feel confident to do that, which of course is the most important part. If you couldn't afford an OB - what exactly is the option for you - that would be my question too (even if you can afford it).

GL and I hope you find someone you are comfortable with