Dog habits

MommaOf1👧🏻 • 👧🏼 1-1-17💜💕 👼🏻

So when I first got together with my hubs and we went to meet his mom for the first time her dog was just like any other dog. But when I fell pregnant 2 years later her dog started to gravitate towards me every time we went to visit. He never did that before I got pregnant. And now 5 years later he still will rather be with me when we visit than with her..it’s strange..does anyone know what they means?