Dog doesn't want to pee
My dog only wants to pee and poo off leash in an open area of grass.
We used to have a backyard for three years-- we no longer do. There is a park that is about a 15 minute walk away from our home that has offleash hours, but only before 9 am, and after 9 pm. We take her there twice a day, and she pees and usually poos there. But when we walk her several times during the middle of the day, she won't go to the bathroom. There are areas with grass that I walk her to during the day, but she just won't go. Sometimes I walk her to the same park that she pees in offleash at night and early in the morning, thinking that she will go because it smells like where she usually goes potty. But nothing. She's only peed more than twice a day a couple of times in the past month.
Once, a year and a half ago, we went away for a three day weekend and she stayed with a friend, and didn't go to the bathroom for THREE ENTIRE DAYS. They walked her to a nearby park, but the park had no off-leash hours, and she wouldn't go.
Another time, when we were between apartments, we lived where there were no offleash parks anywhere near us, and I walked her 6 or 7 times a day, and she didn't go to the bathroom for 2 days, before we took her to the parents' house that has a backyard that she can go in without a leash.
Is this strange for a dog to be so reluctant to go to the bathroom off leash? I don't know if I should be letting her go offleash at all until she gets used to peeing on a leash, as it's not possible for me to let her go offleash more than twice a day because there just isn't anywhere to do it, and I'm worried that if this happening for the long term, it will give her a UTI or something to only go twice a day? But I'm also worried that she'll be so stubborn if I try to train her to go on her leash, that she'll really just hold out for days and days and give herself a UTI that way too!
Has anyone else had this problem?