Hi,
To a certain degree it's normal. A few days to a week or so I wouldn't worry, however, not months. It is always best to rule out other possibilities even if the obvious is visible(ovulation). The obvious is not always the answer. Always try different insects and make sure everything is up to par. We may assume they stop eating due to ovulating when in reality the UTH is malfunctioning.;-) I'm sure you get the point by now. Here is a list to remind you of what to look over after a week has gone by (off food) and/or other symptoms or concerns develop.
#66---Leo Not Eating? Troubleshoot these causes......cricket4u (July & Nov 2013)
"Leos are very greedy and normally eat right away if everything is set up properly. However, I know there are exceptions. Try switching the hides. (The Exo-Terra hide is more secure and may be the reason. If he's not utilizing the heat, chances are he may not eat.) If that does not work, lower the temp as Elizabeth suggested. You may want to cover the sides of the glass so that he will feel more secure.
Improper temps---air temps too hot or too cold
Improper humidity---too dry is most common
Stress---too much handling---lack of hides or not enough---cagemate bullying, cage too small, et cetera......
Repetitious Diet---variety is important
Spoiled food---upset stomach or simply a bad experience (common with superworms)
Food offered at the wrong time of day---lights on
Wrong size prey---too big or too small
Improper photoperiod
Prey not recognized---leo needs moving prey to elicit feeding response
Malfunctioning heating equipment---goes unnoticed---should be checked daily
UTH is too warm---unregulated---gecko avoids the warm spot, therefore will not eat (need thermostat)
Most common of all CHEAP thermometers => false temp readings
Too much calcium causing constipation and/or loss of appetite
Parasites
Infection
Metabolic---calcium or vitamin deficiency
Impaction
Dehydration
Pain from an injury or otherwise"