Having problems with my meds

It seems like every month I run out a week or two early of my Bi polar and depression meds. At first I thought the pharmacy was shorting me so last month I counted them and they were all there. However, I ran out a week early again on my Seroquel and a few days early with my Zoloft. I don't understand it because I am taking them right and I know my husband doesn't take them because he has his own meds. Because of this problem with running out earl, and because my health insurance does not pay for my meds until the exact day they are due, I have had to go without and it is really messing me up mentally. I am having problems sleeping again because the Seroquel is what helps me sleep but without it I have to take other sleeping pills just to sleep the whole night. Also I am having major mood swings and my husband and I are fighting more because of it. It's weird because he also started running out of his early too. I don't know how we are running out when they are all there when we get them. So all day I have felt depressed and more tired than usual. I really hate having to go through this. I wish I had better health insurance or I wish I could figure out how I am running out early. I really need to get back on track but I don't know how I can when I run out earl every month. Hopefully I will get thigns straightened out soon because I really hate feeling like this.