Here is a link to a site that has a good photo of a male hammie, and give a lot of care info if your other pet turns out to be pregnant:
Most pet stores do not pay for babies, but are usually willing to take back 4 week-old pups that you cannot find homes for.
Blood coming directly out of the rectum can be a sign of serious illness...have him examined by a licensed veterinarian who is familiar with rodent medicine if you think that the blood came from his bowels. Hamsters can get "bloodied" from fights or prolonged sexual behaviors.
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