I personally have not had this situation, but I have a couple of friends who did. She has a little one herself and after graduating last may from college she decided to wait a year to apply to law school b/c she did not get the score she wanted. So, what she's doing is doing a 1 yr program at Tulane (I forgot what she is studying, but I believe it's paralegal studies) and she also considered getting a real estate license. So I guess my point is that if your schedule permits, it may be advantageous for you to take a 1-2 year program of study (Maybe a certificate program or masters). That way you would have something meaningful to add to your application when you are ready to apply for law programs. Or if you can land some legal experience (volunteering) that would not only look good on your resume, but help establish some contacts you can use to find your first legal job the summer after your first year of law school. I have another friend who waited a year, but did not retake the LSATs (did not get the score he wanted), he just kept the same scores. But he strategized in applying very early and applying to some prelaw programs like the LEO, Indiana CLEO, CLEO to up his chances and he is now at a Tier 1 school on scholarship.
So waiting may be very advantageous, you just gotta strategize.