Hi guys

What is the earliest that you can confirm pregnancy by sonar. My vet confirmed pregnancy by palpitation but I am not convinced that she is pregnant. Can I sonar at 28 days or is it too early?

The lady I use locally to me will scan no earlier than 28 days, she tells me that a pregnancy can be confirmed earlier but she would not as sometimes the pregancy fails or reabsorbes at a later stage, so she opts for a min of 28 days.