Spotting 38 weeks

Courtney
So today I had some painful braxton hicks(felt like contractions but not regular) and then I went to pee and there was light blood when I wiped and then alittle later on, it happened again but this time w chunks of my mucous plug in it. Is this early labor? Or just my cervix thinning out/ dialating? My last appt which was wed, she said I wasn't really dialated yet ..