Gained weight during first trimester

I’m 9 weeks pregnant and I’ve put on 6 pounds. I can’t believe it. But at the same time I can, Ive been more “hungry” I’m back to counting calories to maintain my weight & so that I’m aware of how much I’m eating! and I’m just gonna try to eat more smaller meals throughout the day. Is it safe for me to loose 6 pounds in a healthy way, before second trimester hits? I don’t think it’s healthy I gained this weight to begin with. My BMI is on the higher side of “normal” FYI * please don’t judge me that I want to get back down to 143 before second trimester. My reason is because I know I’ll gain some more through the rest of the pregnancy, don’t want to have to loose so much weight afterwards:( *