I have 3 hamsters and I need help in breeding!

We have 5 Syrian Hamster (2 males and 3 females). One of the females are 2 weeks pregnant. I had been notice to Hermoine (Pregnant Syrian Hamster) when she got pregnant are the following: 1. irritable to her partner 2. so messy on her cage 3. she's gaining weight 4. collecting beddings on her house Make note of this: 1. note the date of your hamster mated, because the gestation period usually takes only 16-21 days only. 2. Keep the female hamster nourished. 3. Add more proteins to her normal diet. 4. Give her high moisture food for her milk. 5. You should not be held much during her pregnancy, especially in the late of her pregnancy. 6. Her cage should be cleaned 3 or 4 days before the litter is due. 7. She should have plenty of beddings to make her as her nest. Hope it will help to you and to your Hamster a lot! Good luck!