Is that the sacrifice that must be made for females in medicine who want children, or is there some way around it?
I'm glad that my more modern-minded male classmates now seem to have the same reservations. Once we get past the breastfeeding phase, parenting is an equal responsibility, divided by individual inclination, not pre-assigned role. This idea that it's the woman's lot to be solely responsible for the sense of "family" is horse manure.
However, since the gestation and lactation are undeniably going to fall on me, we decided to get them done when I have the most flexibility - for me, marrying at 29, that was medical school. I've had two babies, one during MS3 and one during MS4. I talked with my Dean of Student Affairs before conceiving in order to plan the best window and to make sure that I wouldn't run into surprises as far as loans. My school is very family-friendly and doesn't charge tuition for the extra year (which many students use for research or travel). Therefore I had generous maternity leaves (6 months) and got my clerkships with call done prior to delivering my baby. I lucked out on the health front.
My husband is nonmedical, but employed in a demanding, well-paid field. He doesn't love his work the way I love medicine, and the plan is for me to eventually provide the benefits and financial stability to allow him to pursue something more gratifying, and probably part-time as he has all along been involved in teaching cub scouts and that kind of thing and wants to do lots of it.
During my residency years, when our kids will be 1&4 through to 4&7, he will probably do a lot more of the parenting than I will. We take advantage of nearby family, and employ a nanny who during her interview with us emphasized that she wants to seamlessly continue our values and parenting style. That cuts down on time lost transporting kids to daycare.
Wanting to be with my kids has impacted my specialty choice (EM), though it wasn't the primary driver. Even during residency I will work fewer hours than many other MDs.
I adore my family. I am a very "attached" mother, in that granola-crunchy way. I'm an extended-nursing, babywearing touchy-feely mom. I fit right in at my local La Leche League. But the solid truth is that I'm a lousy, miserable homemaker. Meal planning, home decorating, shopping, housecleaning - I was seriously stir-crazy by the end of my maternity leaves. By working to put myself in a position where I can afford to hire those things out, I can be a fun, involved, energetic mom during the time that I'm home instead of being a cranky stressed out shrew. And I love medicine. I will graduate without debt - no pressure - and I cannot imagine not continuing my career as a physician.
Talk with the residents in your chosen field about specifics. Rarely, a woman shares a residency slot with another woman in order to be part-time. I don't know how I'd make it work if I felt the calling to be a surgeon or an OB. But don't buy it if someone else tries to tell you that you can't be a good mother and an MD. That's a decision that nobody but you can make.