Within the week, try her in a trap for 48 hours maximum, if not drop let her out of trap for a day (keep eye on her) watch for her...
Dwelling near the bottom..
Hanging around the heater..
Hanging around over or near plants..
Hanging around near internal filyer (if you have one)
or simply just acting like she is mobid, then put her bk in trap..
she's not 100% boxed off, wags are well known to hold the largest number of fry in drops, dont ask me why they just do so i would say 3 days time by the looks of it