This is hypothetical (that doesn't look right-I can't spell! ) as we are TTC dc2 but I had really bad morning sickness with dd (which started by lunchtime and lasted the rest of the day-feeling really sick and then being sick for the first 5-6 months!!) -would you be really worried if the next time round you didn't get morning sickness? It is after all supposed to be a sign of a healthy pregnancy not all that healthy when you can't actually eat .