About a month ago a noticeably pregnant cat was found out side by my kids. She is friendly and bonded with me right away. I am trying yo figure out about how far along she is. I had to shave on of her legs and tummy she was so dirty and matted. The reat of her body we cleaned with damo warm wash cloths.in yhe last gew days she seems to anxious wants to tigjt up under me or in her nesting box. What are some signs I should watch for??