Past 3 days I've had period like cramps . Mild cramps in my lower stomach but very painful cramps in lower back . Discharge was really watery and soaked my underwear the other night , today there was brownish and light pink on the toilet tissue after wiping. Cramps in stomach are still there. And I've been using the bathroom every 20-15 mins. Period isn't due for another week. What does it sound like???