Dog Started Urinating

[Jody24]

I have a rottie/shephard cross, approximately seven years old. She's always been very good about not going to the bathroom in the house, but for the past few weeks, she has starting peeing in the living room.

She goes out in the morning around 7am, then again around 2pm in the afternoon. She used to be fine until her next walk at 7pm, but now she's started peeing inbetween her morning and afternoon walks.

My family isn't sure if it's a possible bladder infection or what. If anyone has any ideas or suggestions I'd appreciate it.

We are planning on taking her to the vet, but she doesn't deal well with people or animals that aren't immediate family, so finding a vet that can look her is a little difficult.