I just got a BM female puppy last week we went to the vet for her vaccine and wellness check. all was good. but when i decided to check mr google about the weight of bm pups. i was shock to know that she was actually underweight. she weights only about 7.6 kg (16.8 lb). and she was a few days shy of turning 3 months. her dam is about 50kg (110lb) and sire, bigger. that's the latest photo i got her, the same day when i had her weight checked. should i be worried?