I'm a dude, thus the prospect is easier.
I met and married my wife before medical school. That's made having a spouse/partner in medical school easier. She's also a doctoral student and so she gets the whole studying non-stop thing, and that helps the relationship.
She has a lull in her training in the next few years and I'll be in my graduate years and we plan on trying to start a family. While I'm doing my PhD there will be childcare available, but probably not when I step back into my final clinical years.
I agree with the poster above me. "Possible? Yes Easy? No"