I started my ML on the day I delivered and took 10 weeks and saved the rest for other uses like when I need to bring for vacc, vacation and maid issues.
I've got no problems with nursing. But I begin to alternate my boy with bottle and breast at 6 weeks. And when he was 8 weeks, I started to pump and mimick the timings I will be able to pump at ease when I return to work. For example, in the morning 20mins before I leave the house, during lunch hour and immediately after official work hours. I'm still nursing my now 18 months boy (intend to wean off soon). If you feel engorged, can try leaving cabbage leaves (chilled). It helps greatly