6 weeks today... Bleeding/discharge....

Lara
Hey, so I'm 6 weeks today with 1st pregnancy at 32. Last night... I blead a little which I noticed when I wiped, like bright red blood. Had stomach cramps too, a bit like mild period pain. 
When to bed, then this morning, I had diarreah, the cramps have stopped and the bleeding it's been more like brown, a thicker mucus.... Every time I wipe... And I'm weeing a lot! 
Any advice... Similar experiences?
Xx