Struggling with weight gain!

I am almost done my 17 weeks of pregnancy and weighted myself yesterday morning and I gained almost a kilogram (almost 2lbs) since a week ago!

I used to weight 105kg (231lbs) at my heaviest and had bariatric surgery a year ago in July. I did loose quite a bit and struggling to see that weight gain crawl back up. I understand is normal and it is a mix of baby and other factors (uterus, blood, breasts…) but I am starting to struggle with the thought of getting fat again specially because is so quick to go up in the scale.

Any tips or tricks on what to do or how to handle it?