Man bschools have acknowledged that if they want to compete for talented women who typically go into law or medicine, they need to be more competitive in terms of timing. The average mba age at matriculation is 28 which means women will graduate at 30...bad timing for starting a family.
I believe schools understand the timetable of matriculate 26, graduate 28, family 30-32 (2+ years experience) needed to succeed in very competitive fields such as IB and consulting. So I think schools are slightly more understanding of females with limited WE.
On another note, unless you have an absolutely stellar GMAT/GPA, I would feel slightly shaky with only 3 summers of internship experience. My friend got into Haas in the Engineering Finance Program because it was new and untested but he said he would have no chance now. So if you can find a niche program like that, I say go for it. Stanford also tends to accept younger applicants.