My guinea pigs pregnant! Help me!?

My guinea pigs pregnant! This is taking forever! Her pelvis widens every day! She's restless, the babies are kicking like crazy! And she has been squealing more than usual! What does this mean? How many exact days until she gives birth? What can I do to comfort her? I can also send pics on my email can anyone tell me how many babies that is expected by just looking at her??!! Please help! My email is aylascott14@yahoo.com