Hi all, long time lurker posting for the first time 
Me and my partner have a female mini lop that we’ve had since about 12 weeks old. She’s now about six months old.
She lives outside in a nice big hutch, full of toys and stimulation to keep her from getting bored. Each evening when we get home from work we bring her in the house. She has the run of the living room, kitchen and the stairs (we close the bedrooms upstairs so she just has the upstairs landing). We bring her litter tray in with her each night and put it on the living room floor and over the past few months she’s been using it all the time. Sometimes she’ll poo on the floor but she never ever wee’s anywhere other than the litter box.
Over the weekend just gone, she has jumped up onto the sofa and wee’d 3-4 times which was accompanied by some heavy digging! She wee’d on the upstairs landing carpet too. This is out of character for her because she’s been so good at using her litter tray over the past few months. There was also one day where she done a white looking wee on my lap and there was a white liquid on the walls of her hutch I noticed yesterday…almost like she’s been spraying?
Does this behaviour sound like anything in particular? Could it be perhaps her coming into sexual maturity. We’ve talked about getting her done but we’d rather avoid it if we can as we only have her.
Any help is appreciated.
Thanks in advance