Aww, the first time is always a little rough on them. My d'uccle bantam laid for the first time just a week ago and I was able to spot the lead up while tucking them in : )
Unfortunately it was too late for me to stick around and observe her, but she was fussy and I was able to give her a little nudge to the nest boxes. Laid the most perfect, tiny egg <3
Fingers crossed your girls have an easy time figuring it out : ) sometimes the second confuses them. Thor the cornish bantam laid her first in the nest box and her second a week later in the middle of the run : P