Weddingbee boards

I've been wrestling a question.  My husband and I were invited to a friend's wedding in September.  My husband works shift works and only knows his schedule for two weeks at a time and sometimes does not receive his new schedule until a few days before it starts.  Of course, the bride needs a response sooner than this.  So, I went ahead and RSVP'd yes for both of us in the hopes that he will have that day off or can switch with a coworker to get it off.  If it turns out that he can't attend, what's the best way to handle this?  Should I call the bride and tell her no  (and throw off her numbers), not say anything and bring another friend to keep her numbers unchanged or call her and giver her the option of the above options and ask her to let me know her preference.  Help!

Thank you everyone for your feedback!  This is always a big dilemma for us.  Having been a recent bride, I completely realize why bride's request responses more than a few days before the wedding.  But, for me it's just not always possible.  So, I've gone back and forth with between responding yes for me and maybe for my husband and doing like I did for this wedding and responding yes for both of us with a plan to adjust if necessary.  I agree that if he can't, I'll just call the bride.  I hate to bother any bride close to the wedding date but I do agree with your advice that's it's best to let her make the call her.  As always, I love the advice I get from the hive!!!

@Ryna - Logic would say he would just request the time off of work.  But, with his job they never tell him whether the time off is approved or not.  We literally have to wait till the schedule comes out to know.  There have been times when he has submitted a request and not heard that it was denied so we assumed that it was approved only to receive the schedule and see him on it.  It can be very frustrating but at this point, we're just trying to learn to deal with it as smoothly as possible.