Three weeks late, spotted once. Pregnant?

My LMP was May 26. I haven't had it since and have started feeling various pg symptoms: tired, moody, can't sleep, I get hungry a lot but can't seem to eat. My are extremely sensitive, and I'm starting to have dull aches. Monday, I got the +\- Clearblue three pack. I drank a lot that night (64 oz. V8 juice, water, soda) for who knows what reason. Tuesday, I took one test and got a light horizontal and thin vertical. My friend, who IS pregnant, said it's a positive. But RIGHT after, I wiped and there was spotting? It wasn't spots, but more like a light fluid, just a bit rosier than a pastel color. It hasn't happened since then. But just twenty minutes ago, I wiped away a speck of brownish discharge, more gelatinous in consistency. But it was only like a tenth of the surface of a dime, if that. Pregnant, what?