I need some assistance regarding due dates.
My husband can be away on a moment's notice, so we need to book leave to ensure time off around the due date. Being first timers we are having difficulty with this project.

Could moms over 35 (I heard age impacts due date) tell me if they went into labor before/after due date with their first baby?
Husband is pressing to choose dates as summer is very hard to get leave and I have no idea, so some statistics would help me make a decision.

Thanks a bunch