My boyfriend and I just picked up our female puppy 2 weeks ago, she is now 10 weeks old today. This morning I noticed that she has a hard bump almost like cartilage at the top of her stomach right between her rib cage. I never noticed this before, but my boyfriend says it's been there from day one...there was no mention of this on her vet card so maybe it wasn't there!! We have a 16 month old male that I inspected today that sure doesn't have any hard lumps or bumps. I was feeling around her stomach pressing a bit etc and she doesn't seem to be bothered at all. She's eating playing pooping as normal...her next set of needles isn't for another two weeks...should I wait or should we go to the vet asap??