Cramps with no bleeding

Heavy discharge with cramps and no bleeding...sore boobs, headache every morning on the dot...I think I’m pregnant. I took a test and quickly put it away around 5 minutes. I looked the next morning and it was positive. Now the line has evaporated because the urine got all over the test. I think I’m actually pregnant but how the hell am I one of the people who got pregnant while on birth control?! Crazy lol. It’s the heavy white discharge every time I wipe and the cramps that are really telling me. Not even so much the test but I swear I saw the blue line...any thoughts?