Check up at 22 weeks

Last Thursday I went for a regular check up.  Everything still looks great.  Easton's heartbeat was 143.  I got the wonderful news that all of the blood testing for disorder chromosomes came back negative.  I was measuring right at 22 weeks and I had gained one pound since the month before, 7 total throughout my pregnancy. I think that has a lot of do with the throwing up that has come back lately.  My doctor says that this can happen to some women and won't be concerned unless I start losing weight.  Next check up will be the first week in March.