I feel so fat and ugly...

I got weighed the other day at the doctors and I'm up to 139.6 lbs... I'm not pregnant but everyone asks if I am or they comment on my weight gain... I don't know what to do. I've never weighed so much and I just feel so ugly and fat... I mean, I got a bikini but I don't even feel comfortable in it. I hate the way I look in my clothes and I hate going out anymore cause of my weight gain. It's just caused me so much depression and idk how to get rid of it. I've tried everything... ☹️