OMG! You are sooooo lucky. So my second pregnancy and my current at 6wks my cat, Oliver began pissing on me!!!!!!! It was soo gross, he's my sweet, smart, & affectionate baby and never has had marking or litter box issues. He'd act like he was settling in my lap like usual and instead of laying down would pee!! Didn't make the connection to my pregnancy bc I MC on second pregnancy so he stopped. This time it went on for a couple days actually he crawled on me and did it once when I was napping!! Then my female, Nuku nuku started peeing on my pillows and throw blanket too!
I Did a search and found out it's anxiety over our changing scent so they were trying to add their scent to my new one to try and bond closer to me or something. So for two days we ended up locking them up whenever I slept, I also wore their collars like bracelets and rubbed them on my pits, common pheromone spots (pits, crotch, and feet). Which thank God worked and they stopped!
I did notice my dogs will not leave my side now either, which is fairly normal for the one I raised when I was single but our other two who aren't the neediest are like Velcro too. My malamute keeps trying to lay her head on my tummy too.