I was able to think of what is to come with this story

Teething

Crawling

Easter

Playgroup

Storytime

Walking

Talking

First birthday

Niall might date

Tour

Sickness

Potty training

Starting school

Surgeries

Cruises

Trips

Performing

Helmet for one or both

Sleep training the girls

Weaning

Seeing relatives

Big girl bed

plus more