I am not a mom, but maybe I can help you…
My wife is expecting our second one in June (same day as Eagleman, too bad I registered). When we had our first, she took about 2 months to get back into some kind of a swing of training. During the pregnancy she stayed in touch with swimming and occasionally rode her trainer, and ran up to 20 weeks, then did some walking. She carried through the summer, so the weather was cooperative for her to get outside. She did not try to ride on the road for fear of what could happen if she fell. Her total training she estimates at 5 hours a week up to 26 weeks, when it dropped off to nothing.
Once the baby was born (Sept 04), we were pretty much buried (still are). With the new year, she started training pretty regularly. We worked out a system where we exchanged days. She would ride on Mondays and I would ride on Tuesdays, and we would alternate the Thursday and Wednesday. Wednesday was our local group ride, so it would mean we alternated weeks for that. Weekends saw me riding saturdays and her running when I got home, and sundays were the opposite. I convinced her to lead a group ride on Mondays in April, and she got into the groove, doing it through the whole summer. She felt that this commitment that helped get her into that groove, and I would get to spend more time with the baby.
It was tough considering we always trained together before, now we never train together except when family offered to watch the baby. You learn to make do with what you have. Sometimes the babyjogger was our saving grace. Usually head control in a baby is sufficient in 4 months to hit the road for 30 minutes. Sometimes, instead of suggesting she go train, I would just take the baby, and tell her “see yah” and go out with the jogging stroller, or take our baby to the pool. She would train, or more importantly sometimes, take a nap.
Good Luck! You will have too much fun to care if you miss training.
BTW My wife had a fantastic season last year, and did so with a training base more related to what she had done in the previous 10 years than what she did in the previous months. She entered 4 tris and won 3 of them, getting second in Pittsburgh to round it out.
I didn’t, so I have to brag about something…