How much longer until my Jewels has her kittens?

I just realized my Jewels seems quite a bit larger than normal and lumpier too, I think she may be pregnant. Normally she is a rather slim feline but recently (about 2wks now) I noticed the sides of her tummy sticking out and when she sits down she looks like a big fluffy pear. I can feel a hardness to her stomach and I noticed, at least, 2 approximately 3" sized bumps ?"kittens"? but can't detect any movement. She seems to be more hungry, wanting more attention, following me around wading under my feet and giving me these little meows for no reason at all. So I know she's most likely pregnant but how far along can I expect her to be?