As with other posters, my DH works a lot of hours, and I do the schooling alone. We made the decision together to hs, but I implement it. You need to do what's right for your family, and homeschooling provides a unique type of freedom that you can't find anywhere else. You don't have to worry about rushing a child off to school in the morning, parent meetings, picking them up or being home for the bus. You can adjust your days around DH when he's available, which is something mainstream schooled children cannot do. We just came back from a beach vacation since this is the time of year when DH can easily get time off; plus, we were able to save money by going in the off-season. If you need your lives to be flexible, I can think of no better choice.
Best wishes with your decision! :)