Can you do the 24 day challenge while nursing? I'm in a wedding 8 weeks after I'm due and I'm very vain and want to be as skinny as the other bridesmaids all are

Is there a modified version or can I just order the normal 24 day challenge? I tried looking on their website but didn't find any answers. FTW- I wouldn't do the 24DC until the few weeks right before the wedding, so not immediately after the kid is born.
Re: Advocare + nursing?