cramping?!

Danielle
I'm currently 6+2 pregnant and last night I was having slight cramps. I went to the bathroom and when I wiped there was very very light blood mixed with cm! Is this normal I'm really really scared and nervous. I don't have an appointment until another week, should I call and let them know?! I've never had this in both of my previous pregnancies so I'm scared and don't know what to do! I'm having cramps on and off but not her blood. Any help/advice would be great cause I'm freaking out!