I breed all of mine the day after they lay a clutch. This way I have a high fertility rate. If the male has a heavy load though, I’ll wait until she lays 2-3 clutches, and then re-breed her.
No she will lay the same amount of eggs no matter what. But female Leos retain sperm. She might run out, that is why I breed more than once. Just to make sure that the eggs are fertile, not to make her lay more.
She will still only lay 1-2 eggs per clutch. She can retain sperm for 2-5 clutches. Some people rebreed after a few clutches to make sure that the later clutches will still be fertile.
My female was only bred once and gave me 5 fertile clutches.