Writing is hard work. You wouldn't think it but those pesky little letters can be tricky to form into the right order. Then enter children or even one singular child and it becomes that much more difficult.
Lets start with some introductory remarks. At this point in life (because life is crazy and I need to add a disclaimer), I have one child, an almost five year old daughter with a borderline unhealthy obsession with owls. She's a fantastic kid who is (almost) always helpful and does a decent job of cleaning up her toys when I tell her to.
But let's face it, she's still a young child who enjoys having mommy/daughter time and has needs (thrice daily feedings, naps, play, doctors appointments). Its incredibly difficult to work through all the interruptions and still come out with a few sentences that actually make sense.
I've learned a few tricks along the way, even though its still difficult to juggle a family and writing the next great American novel (I'm not saying that's what I'm producing).
First off, get up early. Even just thirty minutes of uninterrupted writing at the beginning of the day can produce fantastic results. Early morning writing, takes getting used to but because you haven't used up any of your stores of discipline you are much more apt to actually write. So often my only writing time is at the start of the day, before husband and daughter are up with demands.
Remember the saying "nap when the baby naps." Its fantastic advice. Just substitute writing for the nap. Children are napping, take thirty minutes and write. I'll even sneak in some writing when my daughter watches her allotted 1 hour of tv a day. Much of the drafting for The Clouds Aren't White was done on this model.
Lastly, make writing apart of your schedule. We all schedule cleaning and laundry and doctors appointments and grocery store trips. Schedule writing into your day. Don't say "if I have the time." Find the time. Writing doesn't have to be done every day. But it should be done, at the very least 3 times a week. Even if that's only ten minutes a day. This keeps your novel fresh in your mind.
There's no magic formula for finding writing time. What I've learned over the last three years, is to tailor writing to fit your lifestyle. If you have an hour during sports practice, bring notes or your laptop. Get creative. It is possible to write with children.