Light pink help

I'm about 5 weeks, not completely sure because I haven't seen a doctor that's just my guess. Every time I go to the bathroom and wipe there's a light pink tint, and has been happening on and off this would be the 2nd day it's happened. A little scared because this is my first pregnancy and I don't know what to expect. Thinking about going to the hospital just to ease my mind. Should I be worried??