[Frans*lil*Bia*]

Is Bia in heat? Well this morning I was looking at my dogs pee pads to see if they needed to be changed and I noticed that one of them had a pinkish/yellow colored pee spot on it. I really didnt think nothing of it, and then about an hour later I seen the same thing on another pee pad. I checked Bia for any blood on her hair, and even where she had been sitting and sleeping and there was nothing. She is 5 months now and my other dog is only 10 weeks and still hasn't gotten the concept of peeing on the pads so I even though I didn't see what dog peed on the pads I really thinking it was Bia. She hasn't been that different latley, except for today I noticed she is way more clingy than usual, and she wants me to hold her every time I am holding my other dog, which usually she doesn't trip off of. I also know that she was chewing a red raw hide heart last night and I am thinking maybe that could of made her pee a little pinkish. I dont know whats up with her, could it be her 1st heat or could something be wrong or could it be okay. Any help would be appriciated!