some question for you can you please help me

Question
my cat is pregnant the other day i felt the babys move, it was awesome i started to cry. i don't know how far along she is can you help me on this please.
she is alway on her back which is kinda werid cause she don't like it on her back.
were ever i am you can bet she is right there.
her belly is not very big.
i made her a box with blanket, but she don't go in it very much, like right now she is lieing beside it ???
she is 4 years old, i hope she is a good mom
when the kittens are born will i have to show them were the mommy nipples are to eat or will they know.
i'm sorry this is my first time for me and i am a little scared hopeing everthing will turn out ok. sorry for all the question.  

Answer
Hi Donna, Thanks for the questions! Has your cat ever had kittens before? It is odd for a 4 year old to be having her first litter now.... Was this a deliberate breeding? Is the mom pure bred? Can you write me back about these questions?
If you felt the babies move for the first time then she is probably about 6 weeks along which means she will have another 3 - 3.5 weeks to go. Most mom cats are not interested in the nesting box until they are almost ready to deliver. So, don't worry yet.
You shouldn't have to show the babies where the nipples are. Mother nature takes care of most things. Usually the mom cat will want you around when she is pregnant and when she is delivering but normally you won't have to do a thing. Cats are pretty smart! Just have a box for her, which you have done already, and she should take care of everything else herself.
Teresa

****followup****
Hi Donna, cats can cry like they are in heat for many reasons. She may have been having some pain, or just wanting to go outside. Now, if she is crouching down in a breeding position then she IS IN HEAT... which would mean that she is not pregnant. If she is not crouching then I wouldn't think too much about it.
Teresa