Weight gain

Ta
When did you start gaining weight in your pregnancy? I'm 24 weeks & have not gained anything at all. I had a doctors appointment yesterday & the nurse said I lost 5 more lbs. I'm a little overweight so they didn't seem concerned about it, but it makes me wonder if I should've gained at least a little bit? 
Also, how much did you gain? This is my first pregnancy. I thought to myself surely I've gained atleast 10-15lbs but nope. I really don't eat as much now that I've gotten pregnant then when I did before & my morning sickness went away around 14 weeks so idk what the deal is. I'm definitely not complaining though!😊