Hard truth time:
Is your plan to work part time, go to school, and switch careers all while carrying, birthing, and caring for an infant technically possible? Yes. Is it advisable? No.
I just spent the last year caring for my firstborn and infant care, no matter how efficient you are, well supported you are, energetic you are, is freaking exhausting. Mother Nature designed newborns to be the #1 all encompassing priority of their parents, not something that can easily fit in around difficult schedules and other pressing responsibilities. I personally think your desired plan to do everything all at once is a recipe for complete burnout, or at the very least not really having the time or energy to truly enjoy your new little one. Burnout is actually very serious postpartum and can trigger postpartum depression, so it isn’t something to be dismissed.
Did you know that new parents rarely get more than 2-3 hours of sleep in a stretch and breastfeeding moms often get even less? For WEEKS at the very least, or even months. That’s actually not enough time to get a full sleep cycle, which means not only the duration of your sleep is dramatically reduced, but the quality of what you can get is poor.
Breastfeeding if you choose to do it is surprisingly exhausting and time consuming. It is a 24/7 job…every 2 hours for weeks. If you struggle with breastfeeding to some extent, as many moms do, it will be even harder than the standard challenges that come with even relatively easy breastfeeding experiences. The chances of you being able to breastfeed and care for the infant and work and study to the best of your ability are extremely slim…something will have to give eventually. If you have to attend classes or go to work, you will have to pump which is not only a huge order for a clinician (because you can't just tell your patient sorry, I need to disappear for a half hour now!), but many moms do not respond well to pumping. Even if you formula feed from day 1, baby still needs to eat every 3 hours or so around the clock.
Babies in general are hard work, but even more difficult if things don’t go according to plan. What if you need a c-section and your recovery time is longer? What if there are complications? What if the baby is born premature and needs to stay in the NICU for a bit? What happens if you conceive TWINS!? Your plan seems to be predicated on 1 very healthy baby, 1 very healthy mom, and no real challenges to speak of - and even then you will be stretched to the max. Maybe you’ll luck out, but what if you don’t?
I think you get my point here. It is great to have ambitious dreams but I think you will really enjoy being a new parent more if you effectively prioritize your goals instead of racing ahead trying to do them all at once under difficult circumstances. Hell, even if you can get your husband to find a better paying job with health insurance, that alone could make all the difference...then you could go to school and care for the baby. But work, baby, school all at once...on purpose? Crazy town.