I'm not sure that I can add anything more detailed than the last few posts, but here are my two cents. I was finished with grad school by the time I had my son, but he was in childcare from 5 weeks on (only three weeks after he got out of the NICU!), and I put in close to 70 hours per week at work. Hubby (very supportive), was a pre-med with a full class load and a night job.
It was tough. However, it is doable. I won't try to step on any toes and discuss how you can handle class issues, but will tackle this more from the emotional/recovery aspect.
1. Childcare is going to be the second biggest problem for you (Sleep is the first!). If you can swing it with your husband/relatives, I highly suggest having the baby stay at home (at least for the first few months) while you are at class. The baby will be fairly indifferent (especially since he or she will sleep most of the day!), but it will reduce your stress (and guilt) incredibly. If that is not an option, does the medical school/hospital have a daycare you can use?(GET ON THE WAITING LIST NOW!!!) Having baby close is a big comfort. Don't worry too much though. The stress and guilt of childcare will subside considerably by the time the baby is 6 months or so. (I LOVE taking my 2 year old to daycare....not just because he is so hard to keep up with, but because he likes being with other children)
2. If the childcare situation is settled, I would schedule your studying to occur AT SCHOOL, or at least AWAY FROM HOME. Sure, after awhile, the baby will sleep through the night and you can look at notes/study then, but for the first few months, there will be too many distractions at home to accomplish much of anything. THis will help you maintain a sense of accomplishment and not have to "worry" about bringing work home. The guilt will kill you more easily than anything else, so you need to know that you are either AT SCHOOL, or AT HOME, with very little bleed-over. If this is just not possible, then PLEASE do the following: schedule time for yourself to work-out and de-stress everyday, and schedule family time religiously every week. Perhaps two nights a week with no books or homework, a weekly outing with the baby, and a night for TV and take-out with your husband.
3. Sleep...all you can. This is the number-one thing your husband/partner can do to help you. Ignore the dishes, laundry and shopping. Invest 3.00 in a pair of earplugs, and sleep.
Best of luck to you!