Hello,
Im new to this but I thought if it helps others it might help me.
My cat use to be so skinny and ate like an average cat and a few weeks ago she started eating a lot, I don't over feed her, I give her the right amount but she keeps on asking for more food everyday. I thought I would just leave it but about a week ago she started wondering off somewhere and if you called her she would come a feww minutes after, where I live its about 5 and a half acres, I worry because its not like her to wonder off she's a very scared cat, she's even scared of little rabits. She wonders off somewhere in the bush but I'm not sure where, I wasn't sure if she was pregnant a few weeks ago but I didn't worry she was still where I could see her and now she is going off somewhere as possible as she can, and everyday I keep her in the house for 3 hours but now she wants to leave after an hour and when I let her go she goes off somewhere. And she's been wanting a lot of attention that it's annoying and she use to not be like this before.
I need to know what's wrong with my kitty, because if she has given birth I can search for the kittens and take better care of them.

Your best bet is to take her to the vet.

Well, examine her a bit. Are her teats swollen? Does it look like she's nursing? If not, get her to the vet and get her spayed. Since you allow her to roam out of doors, make sure she's immunized against rabies and feline leukemia. Of course, that won't protect her from natural predation that may take place while she's roaming about.

If your cat did have a litter then you need to get you're her spayed.
Having a litter of cats is very stressing for a female cat.

I agree with Ren6.
Does your cat look like it's nursing?

Try to follow your cat when she goes out.
Try to look for kittens.

Here are a few sites you might find useful.

Kitten Care For Newborn Kittens (http://hubpages.com/hub/Kitten-Care-For-Newborn-Kittens)
RAISING New Born KITTENS (http://www.waterloowest.com/articles/kittensnewborn.html)
Taking Care of Newborn Kittens (http://www.buzzle.com/articles/taking-care-of-newborn-kittens.html)
Basic Newborn Kitten Care, All About Newborn Kittens, Baby Kittens (http://www.all-about-cute-kittens.com/newborn-kitten-care.html)
Newborn Kittens (http://www.squidoo.com/newbornkittensoreo)

Good Luck!:)

Joy

Thanks for your answers,

But I'm not an in animals, to say I am a nature lover but I know nothing about it so when you say spayed I don't know what you are talking about.

Fixed, uterus removed, no unwanted litters

Spaying is when a vet performs surgery to remove the cats reproductive organs so they cannot have kittens.

It also prevents things like uterine cancer and obviously stops pregnancy complications.