PZ, I had mec tinged waters with my dd and after I had been convinced to have every intervention known to man which ended in a c/s, they told me it was really normal to have mec with babies after 41 weeks because their bowels are developed. It is only a concern if it is a sign of fetal distress. Which it doesn't sound like ur dd was in distress. Midwifethinking , has written an interesting peice on mec stained babies. I am lucky this last time that dd2's water didn't beak till her head was out.