Pregnant kitty

Ok i got question about my 3yr old sons cat being pregnant i noticed today her belly is getting bigger and her nipples are pink and red and they are sticking out what would you giys assume when she will deliver

Cats are so unpredictable. My cat is also pregnant with her second litter. The first it was planned so I knew roughly when she was going to go into labour. This time it wasnt planned and I had no idea. Usual signs near to giving birth is nesting, licking herself alot, she could be very sleepy or the complete opposite-aggitated and nervous. She will produce milk a couple of days before she goes into labour. My cat is always in my wardrobe now, I think this where she will give birth. Have you set up any nesting spots..boxes with towels in or your wardrobe, intoduce them to her. I hope that is some help. Let me know how you get on. Good luck!