Confessions of a Cat Breeder

My cat is going to the bathroom in the corners around and behind my entertainment system. Sometimes she will do it infront of me. Her litter box is cleaned if not every other day, everyday, and we have one with a cover for privacy. I used the litter that i have always used.My fiance is cleaning the cat litter for me because i am pregnant, ive always done it, so would that have anything to do with it? The only thing i can really think of is that she just went into heat for the first time this month, so im hoping when she is spay this will solve the problem. What else can i do to stop this? I also dont know if shes been going anywhere else and how much because I wouldnt be able to see in in the carpet, but i can smell it. Shes also wont enter my bedroom for the past month and I have no idea why. tips and advice are greatly appreciated! thanks

Its probly to show his territory