Your husband is obligated to support the children, until age 18. Alimony is far less certain, unless there is a disability.
What's to stop you from teaching, full time?
Do you need more education? Get it now, cause whatever comfort cushion exists, may not last.
Get your head around your financial situation. Does he have a 401K? Are there any loans against it? They will be due if he becomes employed, elsewhere. What happens if your second home does not sell for the price you need or want?
This is your life. Participate. The more you put into it, the better you will feel.