Ps. Vets are wonderful to have if there IS a real medical / kirurgical emergency.
IF it is a completely normal delivery it will be only awkward to come rushing to them. IÂ´m not even mentioning it will cost you almost as much as for a real emergency. Although I do mention it will stress the mom and her kitten.
There ARE vets who accept to take in a cat, especielly if it is a rescued stray, do all the necessary work and let it live there in a cage a couple of days, and return when everything is done and ready, withhout charging much extra. There ARE some such vets!
But most vets dont do it. They can do the emergency, but all everything else they expect the owner or rescuer does herself. They give some advice, perhaps sell some kitten milk or drop bottle etc.
Thus it may be embarrassing to come rushing to most vets with what probably is a normal delivery, and be sent back home after paying the usual charge.
In these cases it is better to phone first, if they give advices by phone. Most do, especielly if they are your usual vet.