[troubletb]

I tried mating my yorkie and they tied in Oct. I thought she was pregnant, She had all the symptoms, Nipples getting larger, laziness(sleeping all the time) more loveable, morning sickness(some dogs get it) So I brought her to the vet about 3 weeks before she would have given birth and nothing!~! Guess she had a False pregnancy, Any way the only real way to tell is a visit to the vet. And I suggest that you do so, That way if there were to be any complications the vet would see them before it actually happens.
Good luck keep us posted.