It comes down to this.
Im kind of in the same boat busy mom works midnights.
If you dont work out.
You not going to lose any of the weight.
Hate to be so blunt on that one but its true.
The thing is you have to make that time. Other wise all your doing is either maintaining or just going no where.
Something has to give. Either give up a show you might like to watch.
Dont be right on top of a chore you usually are. Something.
Try work out tapes or going for a walk with the little one. Buy a running stroller and take the little one out for your runs.
Do what ever you can to get the workouts in at least 5 times a week to lose weight.
It comes down to us managing what little time we do have. But the more you put that off the more time you lost being a more healthy person. Dont wait , dont let time go by . Make you your priorty so you can be a grandparent and still run after those grand kids.