The first egg is due to hatch an about a week. I’ll update here as chicks manage to hatch. Sometimes chicks and eggs can have problems so I can't promise that all of the eggs will end up as parrotlets. However the eggs are all a nice size and shape so fingers crossed!
For those who are interested here's a photo of the eggs. They're about 1.6 cm long so they're pretty tiny. The 2 eggs that look more beige coloured are the ones that are either newly laid or infertile.