My child had meningitis in the exact same circumstances as you. (Same age, same issue with the bacterial/early antibiotics etc) Its an absolutely awful time you’re in, the fear of wondering if your baby will be ok, coupled with the worry of what the long term outlooks look like.
We had a brain scan around day 5, have you had this yet? And the test to check kidney function etc? If all that is clear then that’s great news.
We stayed in the hospital for around a week, then went home and came back to hospital at 6am and midnight for antibiotics, a nurse came to us at 2pm.
Once she was signed off we then had follow up visits with a consultant every few months and regular head measuring as well as a hearing and sight test.
Pleased to report that my child has zero long term effects from the meningitis and is a perfectly happy, smart girl currently in year 2!
She was signed off from the consultant at around age 2 when it was clear she was meeting milestones. Try not to panic, mine was a slow walker and I worried constantly in ways I didn’t about my eldest. You almost fall into a trap of looking for every milestone bang on the dot and if they’re not early/on time, you panic. But it all was all fine.
Wishing you all the best and please don’t forget to look after yourself in this time. X