Invitation Delivery Times

So I sent out my invitations on Saturday. I brought them to the local post office and asked they be hand canceled (there is an embellishment and one less machine they have to go through the better). The man behind the counter said not a problem, he would take care of it.

I don't know of anyone who has gotten them yet. I called the post office and the woman I spoke to said people should start receiving them today or at the latest by the end of the week. I put $.24 more postage than necessary on them (I had already bought the special stamps I wanted to use so I just used them) so I know the postage isn't a problem.

How long did it take for your guests to start getting them? I'm worried!