I have the career-iest of "career jobs", very far from being a wage slave, very intellectually stimulating, financially lucrative etc - and I wish I hadn't had to go back to work after 1 year.
I am speaking for jobs like investment banking, management consulting, big law, senior management in corporate etc.
I also wish I had started earlier with kids but at my workplace the pace is just so absolutely full-on at all the job levels in your 20s that for many women they are early to mid-30s before reaching a level of seniority that would allow them enough flex in their schedule to be able to handle a nursery pickup. (Almost all have nannies. Many have two for extra coverage.)
I don't think it's feminist to accept this "male pattern career" (work all hours in your 20s, kids in 30s while trying desperately to stay on the career ladder, definitely don't take a career break because there is no coming back...) as a default.
We should advocate more for entry and re-entry schemes into careers later in life, for example. Part time or even 9-5 (not 9am-11pm) versions of professional jobs. Flexible independent consulting options that aren't "well, I guess I'll become a life coach for other ex-professional career women who are finding they can't have it all?"
Feminism that overlooks our biology as women is useless.