My 25 year old female that has never been with a male laid 6 eggs + 1 slug last May
From when she was swelled up to the prelay shed was 18 days
And from prelay shed to laying was 48 days

She has had 10 200g (ish) rats in the months following that laying

This year... (still never been with a male)
The time from swelled up to prelay shed was also 18 days
And its been 30 days to today since her prelay shed.

I'm hoping for eggs in the next 2 - 3 weeks, but I'm starting to worry for no reason at all that they won't come out, or only some will.

How many days should I go (from prelay shed) before I have to contact a vet if no eggs are laid?

If some eggs come out, and others don't in the next day or two, should I give her a bath and start massaging them down her body, that's what I've read.

The eggs last year were all non-viable, so I'm expecting the same this year, but I know its possible for parthenogenesis.

Thanks for any advice.