I had a very young cat (younger than yours, so actually a kitten) accidently fall pregnant recently. I too work full time and did not need to take any time off to be with her.

Cats are very clever, they rarely need help in the birthing process, although they do tend to like you to be there when it happens. My vet basically told me I did not need to do anything apart from provide her with plenty of food (kitten food is best for pregnant queens) and a good size box for her to give birth in.

You may find during the pregnancy she goes on and off her food and her mood changes frequently, my cat would sulk at the top of the stairs.

Towards the end (although she gave birth about a week later than I thought) I would get my mum to pop in once a day when I was at work to check everything seemed normal. There are some tell tell signs that it is getting close. For example for the last few days she will very likely lick her genital area quite frequently and may keep going back and forth from the nesting box.

It is a good idea to put the nesting box down as early on in the pregnancy as possible so she gets used to it, but more often than not, they will go where they want to give birth, my cat very kindly had hers on my bed! After the birth was over I just moved them all to the nesting box.

Generally during the birth, the advise is to just comfort your cat, and watch out for any signs that there are problems. There are some key things to look out for, but I suggest you do some serious reading.

Oh and Congratulations!!! 