Discharge should I be worried?

I was treated for chlamydia over 3 years ago. Anytime something came up I freaked out and went back to be tested and was still clean. I'm pregnant now. When I went to the bathroom earlier and wiped there was a small amount of very pale green discharge. Should I be concerned? I'm not having any other issues. My husband says he hasn't been with anyone else and I want to believe him but it's so scary. Now I'm afraid when all of my labs and Pap comes back at my next baby dr appt that something will be wrong :( help