That broken glass sensation is more often a sign of anal fissures than pouchitis. You might try adding sitz baths to your approach. There are also topical remedies that require a prescription, but everything requires patience if anal fissures are involved. Anal fissures can also be associated with spasm of the anal sphincter, which could explain why your enema solution isn’t coming back out. You did use plain warm tap water in the enema, right?
I’m less concerned about the enema route for Visbiome than I am about its inadequacy as an “emergency solution/hail mary” - it just isn’t likely to work quickly, and it’s not a particularly effective treatment for active pouchitis. Nobody has a clue whether it’s effective in an enema, though some may have opinions. If you have pouchitis it would be *much* more comfortable to get that properly managed with antibiotics before becoming pregnant. Perhaps a pregnancy test today could be more timely than waiting for your period?
Unsolicited advice: You don’t say whether your medical bills are from being uninsured or just having insurance that isn’t quite adequate. If it’s the former then it’s probably worth biting the bullet and getting insured before becoming pregnant. I’d be happy to share what I know about subsidized ACA insurance.