Yes 100% you can. I did same. Your husband is qualify for a spousal open work permit if he's on your PR application as dependent and if your application as passed AOR stage.
You just have to print the AOR letter plus your pnp certificate, attach with other docs, write a letter to state you miss them so much and they're on your PR application then apply for spousal open work permit and your children as accompany kids. You write a letter of consent to allow your husband bring the kids. At this time , they will be approve trust me.
I can feel your pain of staying alone without your family. Please try that and let me know what other info you need.