I knew I was pregnant days before my missed period. My husband and I weren't trying but we weren't preventing either. I normally only use the bathroom 4 times a day but every night for 5 days straight I had been waking up in the middle of the night to go. I woke up one night about to pee myself and it just hit me! I knew I was pregnant. I waited until the next morning to take a test because I didn't want to lose any sleep. I took one test and had a faint positive, went to the store, bought another one and it showed positive immediately! Now I'm 12+3 weeks. :)