When does the bump start to show?

So I'm due February 8th according to the app. I haven't had my first prenatal appointment yet, so I might be due a little later than that. But I'm just wondering, when does the bump typically start to show? This is my first pregnancy and I just want to know what to expect. I'm the maid of honor in my best friends wedding in late October and I'm kind of worried about how big my bump will be by then. I'll be 5 months along at that point. I haven't told her I'm pregnant yet because I feel like she'll be negative about it, but I honestly don't think having a baby bump while being a bridesmaid is a big deal. I know body structure plays a big role in the bump progression, so here's where I'm at now.