How can I tell if a cat is pregnant?

The first month it is quite difficult to determine if a cat is pregnant or not. Although in the third week you can already make certain conclusions.

1. From the third week the cat may be less active and its appetite decreases. The cat begins to require more attention and affection;
2. At the same time, hormonal changes begin in the cat. Vomiting begins. Duration of two to seven days;
3. the abdomen is rounder by the sixth week. You can feel the embryos of kittens when gently touching them;
4. At the ninth week, the fetuses are already formed. You can feel the movement of kittens in the cat’s belly.