Did the baby-bug bite you again? ;-)
You still have time to decide - lots of my friends had their last babies in their early 40:ies,
one woman at my workplace had her second child at the mature age of 44!
What helps a lot if you work parttime is having someone helping you to take the kids
from day-care and home, and making dinner ready in time. That actually makes the day
so much smoother as my hubbie often works late and come home when it is bedtime
for the boys. I think with a little age gap, 4 is very doable in your case. The older boys
can help so much as well. my oldest attends to his brother if I tell him to and he
helps him at mealtimes to do small stuff like cutting up food, fetching things etc.
Just dont ever fall into the "do it all" category - I used to do that i.e working/fixing
/preparing all meals/grocery shopping etc etc, it is not ok - should not be done alone
by anyone; if you both work there has to be some money for a student or retired
"nanny" to help you out. At least we prioritize this, and it has saved my marriage too 