female rabbit pregnate with no male

Question
i was given 2 female rabbits both were pregnate.both had thier babies within a day of each other.i had them for about 2 weeks before they gave birth.they are housed together and have had no contact with a male since i have had them.the babies are 3 weeks old now and doing great however i can see alot of movement inside the mothers how? can they be pregnant ? help please.
p.s no rabbit can get to these mums they are safe and secure.  

Answer
Dear Roz,

If the bunnies are lean, and you see this movement when they are relaxing, it is possible that you are merely witnessing the movements of the intestines (peristalsis) inside the body wall.  This is normal, and nothing to be worried about.

But if by some chance a male has gotten to them, please see:

www.bio.miami.edu/hare/surpriselitter.html

and especially:

www.rabbit.org/health/spay.html

I hope this helps.

Dana