David, sounds like your nest is pretty much on target – I do believe I have had a mama miss laying for one day and then begin again, but this is pretty uncommon. Also had one not begin incubating for one day – but this was only in hot weather – and then she would do her duty. Bet your will be okay.
We have been in Dallas for the past 3 days, so I will be checking tomorrow to see if my 5 babies in nest #3 hatched, as they were due to hatch today, Sunday July 3.
Hope everyone has a good Independence Day!