Sign of pregnant cat:
1. Nipples Swell and Pinkish in color.
2. Increased Appetite
3. Sometimes Vomiting (like human)
4. Abdominal Enlargement (can see around 5th week, when you touch, u can feel something like hard.)
5. Sleep time change, they sleep more than playing.
6. When the time is near to 62 days, you find she will move around and looking for nest (place to labor). So get ready dark place, no male, box and newspaper. Prefer cage her.
7. If you are confuse, bring to vet for ultrasound

p/s at this time the female do not like the male. she will hit the male when the male want something from her ehehehe. So avoid them being together, afraid that the male disturb her. If she is first timer in pregnancy, provide safe place for her to avoid miscarriage.
p/s hopefully you write down the date/week they are mating. so easy to detect on which week she will labor.
Good luck

they mate is i think 1 month or 1 and half month ago , i still remmber that, and now she is not playing too much, 4 weeks before i took her to vet to do some health check i relished that there is a vomit in my floor and 5 days ago also,btw do i have to do any special care n grooming? put her is different cage, is it true that cats eat the illness kitten? and the male might eat the kitten? i know it is sound stupid but is it true ?