Waiting to TTC after BC - why?

Br

Hi everyone - recently off BC for first time in about 11 years, the husband and I are ready to start TTC and gyn suggested we wait until one natural cycle occurs post pill until we official try, using condoms until that point and using OPKs to learn more about ovulation.

Does anyone know why she suggested this waiting period? Just curious who else was told the same and if an explanation followed. I have some friends who were told longer and others who didn’t have to wait at all.