Pregnant cat Can anyone help me

She's nice but feral. We persuaded her into our garage Thrusday night, and we've been feeding her since July. We can't keep her in the house (We have a dog), so we built her a cage large enough for her and her babies. Today she tried to hide behind a table aginst the wall. She's really lazy/tired, and I know she's pregnant because I saw her mating (AND SHE'S HUGE). She had three kittens in a lot across the street in about July. She brought them over for food, and two dissapeared a few weeks later (I think someone took them into their house. They we're tame enough to pet). We know have her and her kitten in seperate cages, but them can hear/smell/see each other. How will I know EXACTLY when she will give birth? I have a blanket over her cage because I heard they like dark places to give birth. Is this true? Her other kitten is 5 months old and she's weaned, but she's was nursing yesterday. Please help me with me cat!

If you have a vet for your other animal, now would be the time to probably call him/her.

If you plan on keeping the cat as a pet you may also want to decide wither or not you want this cat having more kittens after this litter is born.

If the kitten is already weaned you may want to think about adopting the kitten out or taking it to a local shelter.

If you keep the kitten around the mom cat, then the kittens that are to be born with have to fight to get the food they need and mother cats have sometimes large litters.