Help! Cramping and very light spotting

Jessica
I'm 5 weeks 2 days and I've been starting to get some sharp pains deep in my abdomin (almost feels like my cervix). Last night it was enough to wake me up. It's not that it hurts so much that it is unbearable, just very uncomfortable. 
And the last 2 weeks, I've also had on and off spotting. I only see it when I go to the bathroom and wipe. Usually light pink or brown. Sometimes there are light spots of bright red.  
I'm freaking out a little and not sure if this is something to be concerned about or if it's still in the range of what is normal. Has anyone else experienced this and had healthy pregnancies?