Sheila,
It sounds like you have had a whirlwind this last while, but I'm so glad that you are home and are all doing better! PTL!
In all honesty, I think that I would do Beyond as written until your year ends. I wouldn't worry about catching up. I would just focus on systematically moving forward each day and on enjoying the journey.
Then, when you get to the end of your "year", I would reassess how much you have left to finish in Beyond. If you truly felt that you needed to start Bigger Hearts next year and that your kiddos were ready for it, you could just read aloud the remaining pages in the books from Beyond in the summer and call it good.
However, I would lean toward just teaching Beyond as is each day, stopping at your summer break, and then picking Beyond back up again in the fall. But, only you can know if that is best.
Blessings,
Carrie