So these past 3 weeks in between drs apts i have gained 6pounds since last apt dr was surprised since i have lost some…

So these past 3 weeks in between drs apts i have gained 6pounds since last apt dr was surprised since i have lost some and didnt start gaining till 25 weeks but now told me to slow down i kinda blame it on having to do two glucose test this past week and that i ate alil more sweets for the just incase i failed the test but still not crazy amounts of food now im stressing trying to figure out how to cut my weight gain way down or maybe lose a few pounds for 30 weeks im measuring a hair under 34cm any ideas for stopping weight gain and or safely losing some weight not alot just some??? Help and no im not a crazy weight worrying person