I took it both my last pregnancy and this one, both
in first trimester. I have had severe morning sickness...or all day sickness, wasn't keeping anything down at all. Sometimes you have to weigh the benifits over the risks. I was losing weight and am small to begin with, and it came down to what was going to be best for baby. I was lucky if I could kerp water down for 5 minutes before it came back up...so I had to do something.