What are the signs before a cat gives birth?

Before giving birth, a mother cat usually shows anxiety, frequent meowing, and reduced appetite, and a little milk may leak from her nipples.

Second, before birth she walks back and forth at home looking for a suitable place; a mother cat usually picks a dark, quiet, comfortable spot, so the owner should prepare a birthing room in time based on her preference.

Finally, about a day before delivery her rectal temperature drops by about 1 degree C, then returns to normal just before labor begins.