I took two months of throwing up and struggling to keep water down as I didn't want to take zofran...The idea of it gave me huge anxiety, even though it hasn't been fully proved, the risk was too much for me to take, I lost 5 lb by the time I was 16 weeks...I'm now nearly 34 weeks and I'm up 40 odd lb, with a very healthy baby...its all about what risks you want to take, it's your choice..