Weight going up

Rana • Married a year and a half, pregnant with first child.
I'm 24 weeks 4 days and have a fairly small bump that I can still hide in most shirts and yet my weight is going up by the day. I'm up two pounds in the last two days. Ive gained 22 pounds now and I began at a healthy weight. My eating habits are not bad and I'm not overeating. Anyone else have this going on ? My next ob appt is tomorrow so let's see what she says.
I'm just worried that I have at most 13 pounds to gain on the higher end and still have 15 weeks left.