Weight gain

Hi y’all, I just got back from deployment not too long ago. On deployment my period pains were so bad with the heat that I HAD to get on birth control so I don’t pass out. I got the Mirena IUD.

I weighed 160lbs at the end of deployment. I knew I’d gain weight when I got back but, it’s been less than 6 months and now I weigh close to 190... i have NEVER weighed this much. I know my IUD is the reason why. But, is removal the only option? I workout 4x a week. (I’m National Guard) and don’t eat like a shit bag. Please give any kind of advice?