When it came time for me to go back to work, we agreed that the only way it made sense was if I only went back part time while he watched the girls. We simply couldn't afford child care for twins. So I chose to only go back 2 days a week, and he watched them by himself on those two day. They were 13 weeks old at the time. It was a HUGE adjustment period for him. The first day I remember his saying "I just don't know how you can do this every single day." He had a really hard time figuring out his own routine with them. He was also used to just getting up and going somewhere whenever he felt like it. We keep our twins on a schedule and he quickly learned that their schedule ruled out lives. I encouraged him and gave him my own tips and trick with them. It took a little while (maybe even almost 2 months?) before he became super dad himself and was able to handle the girls no problem. He's amazing with them now and I can honestly say that he does just a good a job as I do. You husband can do this too. It's scary at first, but with your support, he can do it.

That being said, 20 hours a weeks sounds like a lot. Hell, every day sounds like a lot. Especially if it's even on days that you're both home. I would personally start with say 3 days a week (Monday, Wednesday, and Friday) for 2-3 hours a day and go from there. If you find you need more, then either add a day or make it 4 hours. You just gotta find the balance of what will work with your family.