Hi, my baby's head was 2/5th engaged (3/5th palpable) at 30 weeks, at 37 weeks it dropped to 3/5ths engaged and at 38 weeks it was 4/5ths engaged, I'm now 41+3, had 2 membrane sweeps and still nothing is happening...sorry, I hope it's different for you, but I remember being so excited at 30 weeks that it was engaged already!!