How many babies does a roly poly have?

i believe that you would only need two sow bugs-a female and a male. It is very difficult to tell the gender apart. Sometimes you can already find a pregnant sow bug or rolly polly. Pregnant ones are usually big. If you flip then over and look on their stomach you will be able to see a white or yellow enlarged sack. That is where the eggs are at. After two months they will emerge into white babies. They are very small and hard to handle. Good luck!!