Congrats!
It depends where you teach as well. If you teach at your own home/studio, and with less then 10 students I feel you could manage to continue teaching. Having had 3 of my own children, and teaching at home, I managed to just take of a couple of weeks before resuming teaching. You work around it...perhaps not teaching all the students. My hubby was a great help. I'd work out my schedule round his, so someone was always with the baby. A student who is able to help out is also a great idea.
Best of luck!