don't want to hurt him😔

How do I tell my husband he's become to big? I'm only 5'2 and 8 stone he is 5'11 and 17 stone! We are from the uk and been big isn't common here at all plus I am a professional dancer so I'm very athletic and passionate about been healthy I don't want to sound shallow but he's started to repulse me so much I know it's not pregnancy hormones before anybody says that because I used to cry about it when I wasn't pregnant I really fear for his health . His belly proberbly weighs around my whole body weight it's really shocking 😔 iv tried saying stuff to him I even made him a diet plan and used to do an excercise regime with him every night but he just gets too lazy and makes excuses what can I do ☹️