I never thought mine would pop......was like a cabbage patch dolls before I was preg so how on earth could it pop?! It did around week 25. At first it would only pop out if I was putting pressure on my belly, like if I was lying on my back and sat up....but now it's permanently out, which I thought I'd HATE but I really like it. It doesn't pop too far and it's (strangely enough) very very soft to stroke (I know, it sounds silly to stroke one's belly button, but it's really nice!).