potential pregnant guinea pig

Question
HI I THINK THAT I HAVE A PREGNANT GUINEA PIG. SHE IS GETTING BIGGER AROUND HER TUMMY AND HAS BEEN FOR ABOUT 4 WEEKS NOW AND HER TUMMY IS FIRM AND THERE ARE LITTLE LUMPS WHICH COULD BE BABIES BUT SHE DOES NOT LOOK EGGPLANT SHAPED WHICH JUDGING BY THE PICTURES ONLINE SHE SHOULD BE. SHE IS EATING A LOT MORE BUT I'M NOT SURE IF SHE IS DRINKING MORE OR NOT. ALSO SHE IS STILL GOOD MATURED, SHE DOES NOT DISLIKE ME PICKING HER UP OR TOUCHING HER BELLY WHICH I HAVE READ IS WHAT NORMALLY HAPPENS AND ALSO SHE IS NOT GRUMPY WITH THE MALE GUINEA PIG I AM A BIT CONFUSED AND SLIGHTLY CONCERNED BECAUSE IF SHE IS PREGNANT I'M MOT SURE WHEN SHE WILL HAVE THEM AND I KNOW THAT THEY CAN BECOME PREGNANT VERY QUICKLY AFTER AND I THINK THAT WOULD BE CRUEL. IF YOU COULD HELP IT WOULD BE MUCH APPRECIATED
THANK YOU HELEN  

Answer
Hello Helen!
No, she is probably not pregnant. That doesn't mean she isn't though.
Those bumps, are there two? One on each side? If so, they are normal do not poke or prod them.
Guinea pigs are pregnant for 2-2 1/2 months. Check some of my old answers for more information.
(Also guinea pigs don't eat or drink more while pregnant!)