Has Oreo been examined by a vet since becoming pregnant? If not, that should be number 1 on your to do list. It's just to make sure she and the babies are all okay and to minimize any risk of complications or problems. Your vet is your best source for information. Your vet will know where things are with Oreo, may be able to tell you around when the babies will be born, what to expect, and what to do (as well as what not to do) during and after the birth. There are also several experienced and knowledgeable folks here at PT that really know what they're talking about when it comes to cats. For right now, the very best thing you can do for sweet Oreo is get her to a vet ASAP if she hasn't been checked during her pregnancy. It will also be the perfect time to discuss spaying with your vet.