Help! Worried for hamster

[jmoza]

Hello!
Getting straight to the point: 9 days ago I purchased a hamster at a local pet store, I was told she was a girl and she showed no sign of testicles. I moved her into her new home and everything seemed to be fine till I noticed this bump very close to her anus that came out of no where. She also started to build a nest and hoard her food so I’ve been thinking she’s pregnant but the lump is what has me worried because I’ve tried to find any articles that this is normal. Anyways I’ve been scared to take her to the vet on the chance that she’s pregnant and I don’t want to stress her out even more. The photo I have isn’t very good quality but it’s the best picture I was able to take without having to pick her up.

[souffle]

I'm pretty sure that is a male hamster you have there. Now that he is warm and has relaxed the testicles start to show and descend down. They can look like bumpy peanuts almost sticking out there. They can also be quite mobile and move up and down. Both males and females like to make large comfy nests. A pregnant female shows bulges over her hips and not down at the back end like that.
You are not the first to be visited by the testicle fairy and you won't be the last. He looks like a lovely boy.

[Falcon]

if you don't mind having a boy hamster, congrats, he's a beautiful boy