Hi Duck, I am due on the 5th of July and having bad morning sickness as well, actually I should say bad night sickness I am fine in the morning but quesy all day then sick at night.
In my previous pregnancy I tried everything and nothing worked, this time the same, I have gone to the doctor and he has prescribed me Maxalon which is safe to take during pregnancy, it doesnt stop nausea alltogether but stops me vomiting and really takes the edge off nausea.
Good luck I hope you find something that works.