Cramping...making me stressed and nervous.

Hello all, I'm 5 weeks pregnant with my first. I've had light/moderate cramps and wierd little sharp pains and twinges the past few days and today I've been spotting off and's suuuper light pink and light brown and I only notice it when I wipe. The cramps seem to be more on the left side. I'm worrying myself sick and I know stress is not good. Doctor can't see me until Monday. I just want to know if anyone has been experiencing anything similar, and if it's normal? Thanks so much in advance.