Idk if it the hormones or if im just always in a bad mood

Every damn thing is getting to be. I dont care what it is its annoying me and im close to flipping out. I live with my in laws because we are having problems with my husbands health and right now its our only option. I try my hardest to get along with my mother in law but ever since they have came home from vacation stuff keeps randomly come up "missing" stuff i know for a damn fact wasnt missing before they came home. I am so pissed because she keeps trying to blame my kids for stuff thats missing like i would let my kids get ahold of a fucking knife. Shit happens but i swear to you i put everything i use my in its spot. Knifes go back in the damn dishwasher when i am done using them to be washed. If its not one damn thing its another. Do not get me wrong i am greatful that they let us live her rent free but she just gets on my damn nerves. (when i am pregnant i cant tolerate her like i normally do) i am about to lose my mind. Trust me if it was possible i would be in my own damn house far away from them to nvever ever see or talk to them again. I am very thankful for their help i am just tired of getting the blame for everything or fingers getting pointed at my toddler babies! I just needed to vent..ugh......