I'm in week 34 , yesterday i had yellow discharge with couple of light blood strips , i had period pain in my tummy and my uterus, from 2.30 till 8.30 , then it stopped, i felt the baby's head hitting me from down as if the baby wants to slip , i texted my doctor she said wait if it gets worse tell me , again i had the period pain at 6 lasted for 2 hours , throughout the day my stomach would get so hard as if it was a rock , i'm still getting the yellow discharge but without the blood strips . Could this be a sign of early labor ?