Well,mine seem to have had to cause I took the dad out like two months ago & she just had 6 babies today!
Can A Dwarf Hamster Get Pregnant Without A Male?
No, a female hamster cannot become pregnant without breeding with a male. Some times when you get a hamster from a pet store it is already pregnant. If you have more than one hamster it is possible they were not sexed correctly and you have a male and a female rather than 2 females.