Hi -- I can't seem to find an answer to this anywhere, so I am hoping that someone on here can help me or at least lead me in the right direction

I am throwing a shower for a dear friend who is going to have a very small wedding with only immediate family members present. How do we go about wording the shower invitations to reflect that? The shower will really be the only time that family & friends can congratulate the bride and celebrate the occasion of being engaged/getting married.
Should we try to find a way to word it on the invitation that the wedding will be small, or should we just leave it up to the bride to explain it to others? It is really a sticky situation, but we wanted to go ahead and throw a shower for her. She is not having a reception.
Any advice/suggestions/recommendations is appreciated