Do Motion Sickness Bands Help with Morning Sickness?

I had atrocious morning sickness during my first pregnancy. (And I use the term "morning sickness" loosely. I had it morning, noon and night). It lasted up until the day I delivered. I was desperate to ease my symptoms. Not only was I a newlywed, but I was an employee and a student in college. I worked in a restaurant and the smell of eggs, which unfortunately was one of the main dishes served, made me incredibly ill. It got to the point where my morning sickness caused me to run to the bathroom so frequently that it was affecting my work (you can't really seat customers when your head is in the toilet half the morning) and my grades (half the class was spent in the bathroom).

At first, my doctor prescribed me Phenergan for my morning sickness. Phenergan is generally used to treat allergy symptoms or hives, but is also prescribed for motion sickness, nausea and vomiting. Unfortunately, it is also used as a sedative or sleep aid. Yep, it causes extreme drowsiness. This would have been perfect had I not had to attend classes, work, or do anything besides sleep all day. But, since my professors frowned upon me nodding off in class, this wasn't very effective in treating my morning sickness. It basically rendered me unconscious. I slept, on average, for two or three hours after taking one pill. So, the only reason I didn't have morning sickness was because I was unconscious the entire time the pill was in my system. So, I looked into motion sickness bands at the suggestion of my obstetrician.

How motion/morning sickness bands work is essentially the same concept as acupressure. It is said that a pressure point called the P6 point, which is the point on the inner side of your arm in line with your middle finger between your wrist and your elbow, can be used to prevent nausea. The bands have a ball on the bands that are placed on the pressure points. This is supposed to alleviate nausea. The question is, does it work?