Sounds like you've got a handful!
I'd get the male fixed ASAP unless you want lots of Sugar Gliders to deal with - and if the baby is male, consider getting him fixed.
Your mother Sugar Glider is sick and while you're at the Veterinarian getting the dad fixed, you need to bring mom along and get her checked out - looks/sounds like an infection of some sort, and the pouch discharge is symptomatic of an infection. I pray that perhaps you have already been to the Veterinarian and she is doing better by now - if not, do not delay further...
God bless you and your little lovelies