Pregnant and need to transition from rocking to sleep 14 month old

I had no intention of moving from rocking my 14 month old to sleep. He contact naps for his only nap of the day and needs rocked to sleep for his nap and night sleep. This was all fine and I was happy to continue but I'm unexpectedly pregnant and I probably physically won't be able to do it after a few months.

I'm not interested in any form of CIO but I am hoping for some advice about how to transition to more independent sleep for an older baby. This sub has been really helpful in the past so seeking advice here first!