Nervous about hosting

Next Sunday, 9/13, I'm hosting my first weekly playgroup and am so nervous!!! I don't even know if anyone will show up?? What if just one parent/child shows up, how awkward will that be, just the two of us? Well, it'll really be four. But these playgroups are for infant/toddlers so the conversation will be more adult-oriented while the kids play.

I want to cancel the whole thing now but the word is out and if I want people to ever show up, I have to be reliable.