Start of labor

So I'm 39+2 weeks and yesterday I got checked and he told me I was 2 cm and 70% effaced (I was 1 cm last week). Well beginning last night I started having mucus with blood streaked in it and it was still happening this morning and I have been having abdominal pain (mostly under my belly button) on and off all day.. Not sure if this is the start of something or its just from the check yesterday.. I'm a ftm and was wondering if anyone thinks this may be the start of labor?