Putting on wait in pregnancy

Does anyone else feel weird putting on weight after having to watch their weight for so long on their ttc journey. We had been ttc for 10 years and with pcos and thyroid problems my weight would fluctuate.

My ob has said they don’t want me putting on more than 15-18 pounds for the whole pregnancy, they were super strict on weight gain over the last 6+ years. Up until last week I put nothing on now at 14+3 I put on 2 lbs. Next appointments is at 14th May just hoping they don’t moan at me because I’m super happy right now x