not gaining any weight losing bad thing?

When I very first found out that I was pregnant I weighed 199 I'm 5 months now and I've only gained 1 pound which I weigh 200 now. The doctors say that I should have gained way more what should I e concerned?

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    No this is my fourth child. They said im not eating enough and all the areas as far as taking in as much as im suppose to
      I didn't gain weight with my middle child until I was like 7 months or so. I only gained 18lbs when I was pregnant with her but in the beginning I actually lost weight.
      About Frances Abernathy
      Current: Oakland, California
      Birth: October 11
      On since: Jun 19, 2014
      a mother of 2 boys and 1 girl. IM DESPERATELY LOOKING FOR A JOB VERY FAST LEARNER I'm expected another boy. This pregnancy has been the most difficultest of them all. More pains and sickness. Anything else you would like to know just ask.