If your hamster is noticably bigger, it is probably pregnant.
Bigger nipples then usual
you can tell a female hamster is pregnant by seeing if the hammy is fat around the belly and put the hammie's belly up to your hammie's tummy is moving.
sometime you can tell if your hamster has put on more wait then usuall and is getting fatter.
When you go to the Pet Store after your female and male hamster are partners and have played for a little bit a Bell, the shop owner, will tell you that your hamster is pregnant an in a week or 10 days your hamster will have a bab y and it WILL tell you. that and your hamsterz will get along perfectly when you hamster 9is pregnant or at least that is what the game and the manual say.
You can tell if any hamster is pregnant 2 ways. If she has put on weight around the middle and is constantly building a nest or her teats are visible/swollen. The latter is the easiest way to tell.
I guess you can tell. If your hamster has been pregnant for 10-16 days and was showing signs of pregnancy and you know she was pregnant then all of a sudden the signs were gone and your hamster is back to it's old self then that is probably the case
He is not fat enough yet, you need to feed him more before baking. the only way to make sure if ur hamster is over weight is to check the ordinary sizes of that type of hamster. If the hamster is fat then put it on a diet
If she begins to breathe heavily and has a big stomach, eats alot and runs on the wheel also!
Fancy Hamsters are usually pregnant for about 2 or 3 weeks (about 14-21 days) Though you will probably not be able to tell if the hamster is pregnant until about the last 4 days of its pregnancy. I hope that this helps and good luck with your little one! :)
Generally, you can't tell unless the hamster is within the last few days of gestation. But to keep from buying a pregnant hamster, I would recommend asking the pet store whether or not she was kept from males and at approximately what age she was taken from her siblings (aka brothers).
she will usually bite alot and will get really big and make squeeking noises from pain.
Hamster are pregnant for 2-3 weeks you can tell by noticing a large increase of the belly size and behavioral changes also she will drink more water and nest/sleep alot more if shes pregnant good luckkwith the pups and make sure not to look at them for the first week just use gloves when your feeding the mother hamster and they have to stay with there mother for 2 months then you can sell then for 5-10 dollars each or if no one buys them then give them to a pet store please dont kill them animals are so precious C=