Not if she is on the cool side.
Once a female ovulated she will remain on the warm side if she is on the cool side she has not ovulated.
Keep in mind that a lock 3 or 4 weeks ago does not mean eggs, it's a long process, with many signs to look for from building up to ovy to pre-lay shed.
Follicle development alone can take up 4 to 8 months.