I want 2 breed my female hamster...

Question
I need help... I have a dwarf hamster named Ruby i'm trying to breed her with my brother's dwarf hamster and she doesnt seem to like him, she's in season but she'll squeek, fall on her back with her mouth open everytime he trys 2 sniff her. If she's successful of becoming pregnant it will be her first litter. I'm expierienced with dwarf babies but i only bought the females that were all ready pregnant. I need help plz....

Answer
Your little female hammy is obviously defensive.  I would suggest if you have not already... put HER into HIS cage.  The female is the more dominant and thus that is why she reacts harsher.  If that doesn't work, establish a separate breeding area and put her in first, then the little boy. Do this the first day for about 2 hours unless they get along good then overnite... then separate the daytime... then try again the second nite.  IF it works, she will not heat again and will deliver 18-21 days from when she conceived.  I hope this helps.