How do I tell my husband he is getting fat?

Ive just had a baby, and Im working hard at losing the excess weight so I can give my daughter a healthy model. My hubby put on alot of weight too during my pregnancy, but he's not making any effort to loose it... I'm not sure he knows how big hes gotten, Ive subtly suggested to him many times... maybe we shouldnt get takeaway ect... but the message isnt getting through. I want him to provide a healthy role model for our daughter too so he can be active and energetic for her. Hes quite sensitive, how do I not hurt his feelings?