Want to try anal only month but worried about 💩 & douche timing, & IBS

I'm F and want to try an anal only month with my husband. We are experienced with anal but it's been infrequent- maybe once or twice a month at most.

For an anal only month, I have IBS and am worried about timing and mess. I can mostly manage my IBS symptoms by avoiding trigger foods, but sometimes shit happens ya know? I also get "period poops" (more frequent and loose bms) leading up to and during my period.

I have not tried anal douching yet and am open to trying it, but I'm just not sure how that works with spontaneous sex. We both very much prefer spontaneous over scheduled sex. But usually anal has been planned at least far enough ahead to do some cleaning up down there beforehand. With it being all month long, that's not really feasible for us to plan ahead each time, especially if we want to keep up at our usual frequency for sex (3-4 times a week). How do I get the timing right?

My husband has dealt with a few small messes before and isn't bothered by it, it's more me who is worried. I'm also worried about hurting my anus which can sometimes get irritated and be extra sensitive if I've been constipated. Any tips appreciated!