Breeding shih tzu

@shadjee1 (604)
Philippines
February 24, 2012 8:58am CST
I got to shih tzu dogs - One male and one female. About last month, we found out that the female dog got her menstruation period and a few weeks later, we noticed that she is getting fatter and got nipples already. How do we know if she is pregnant already? How long do they stay pregnant? How will we know that she is about to give birth? Some say that shih tzu dogs has to be put on a ceasarian section? Is this true?
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