Is there anything as awful as morning sickness? First up the title is misleading. We need to change the name to 'all-day-feeling-like-crap' sickness. Women can get morning sickness for the first three, four or the whole nine months. Dr David Addenbrooke is an obstetrician and co-author of 9 Months- The essential Australian guide to pregnancy. He explains why you might be experiencing morning sickness and what you can do about it.