Do you have a picture? Technically gestation (pregnancy) usually only lasts 16 to 17 days. Then the joeys are in the mothers pouch for 63-70 days. If she has joeys ip (in pouch) you may not notice til they get the size of a peanut and will look like 1-2 bumps on either side of the pouch. The joeys will progressively get larger and you will begin to see tiny feet and tails poking outside of the pouch. They will continue to nurse 8-10 weeks once oop (out of pouch). The father is a important part of the joeys growing up so do not separate them. If you do don´t add him back until the joeys are mom are separated (he may try to eat the joeys if you add him back without him knowing they are his). Male joeys mature at 12 weeks and should be neutered if not lineaged or going out to a home as a pet only. If you want to keep the mom and joeys along with the dad all males should be neutered to prevent inbreeding.