Early labour?

Started contractions at 5 am and before that couldn't sleep from 130am because of sore back I don't have my mucus plug and doctor said last week I'm 1cm dilated and 70% and so after all these contractions today which weren't too regular some were and some weren't I went to the hospital and I was 80% effaced and 2 cms..  And still getting contractions on and off and extremely sore everywhere! Early labour ? What do u ladies think? Due sept 29th