I'm 17 and you have your belly button pierced so when you have kids it wont stretch the hole?

I'm not completely sure how this question is supposed to be Worded, but I had my belly button pierced at 14 and had a child at 17. I took the jewelry out when I was pregnant til about a month ago, my daughters 15 months, so I had it out for awhile. But the hole DID stretch, and when you're pregnant your belly button pushes more inwards. Or it's deeper.