I work full time with three kids. I always got up very early and did it before work.

Just saw your post, I was/am the same way! I leave for work at 6:30am, have a 2 hour drive most mornings in traffic, work a 9-10 hour day, drive home 1-1.5 hours and get home around 7. I tried to change my schedule and they wouldn't let me. I had my first baby at age 35 in May (he's going on 10 months now) so I've been doing this schedule since I went back to work mid-August. Its been rough. My husband has a weird rotating schedule so he is home with the baby 2-3 days a week, but that also means when he works he is gone from 5:30am-9pm and works every other weekend so when I am home with the baby I'm usually home by myself. Its been exhausting. And I have the same guilt you do. And the same lack of time/energy for exercising!

So my advice after having done it for a little while now-

Work out every Saturday and Sunday morning - I personally put my little one in his jumperoo and I put on a Tae Bo video, he loves to jump around with me and thinks its hilarious, and I count out loud (you know how they count in those workout videos) so he'll hear the numbers etc, he seems to have fun!

I also have treadmill in our bedroom so I'll sometimes do that on weekends and he'll sit on the bed and play with his toys. So don't know if its in your budget to buy a peice of workout equipment but it may be worth the gym membership to have something at home, our treadmill was about $400 (which I figured would be about 2 years of a gym membership for me and my husband) and maybe some free weights, so that you can spend time with your baby while working out.

I personally don't work out during the week. I just have no time. But what I do while sitting at my desk is seated leg extensions. I'm only working my quadriceps but I definitely notice a huge difference in my thigh muscles and it burns after a while! I take a post it note and I write down every time I've done one, so that by the end of the day I've done it for 30 minutes total, 15 minutes each leg. What I do is while sitting in my chair I raise one leg off the seat and keep it off the seat for 3 minutes at a time, and kick in and out while holding my leg up for the 3 minutes. Do one leg and then the other. From what I've calculated it burns about 90 calories per 30 minutes, so its better than nothing I figure, and like I said its really toned my quads just in the 6 months I've been doing them, usually about 4 days a week while at work.

Anyway good luck, I know it sucks! I actually am getting laid off this week (they wanted to transfer me to a different, busier department that would have given me a WORSE commute and I said no thanks so they're laying me off, my last day is tomorrow). And although I'm not thrilled about being unemployed and I'm slightly stressed about the finances, I'm so relieved and happy I'll get to see my baby more!

If I were you I would see about changing your schedule, reducing your hours, or maybe finding another job?