16/05/2018-----I'm 18 and am on the pill, I take my pill RELIGIOUSLY and I never forget to take it, my period is normally 3-5 days and is normally very light with rarely any blood clots. 

I got my period on 13/05/2018 and it was kind of a brown colour and light, by the next day there was no bleeding? I am mostly living with my boyfriend and we only have sex probably once/twice a day and he cums inside me every time. 

I'm absolutely petrified that I'm pregnant, I peed the bed this morning when I woke up and I don't know why, I can't find an explanation for this and am seriously freaking out about it. I've had a lot of money, work, college and mental health issues recently and the stress led me to being hospitalized twice, all this within a month, am I pregnant or is my body reacting to the stress of things currently??? 

Please help