I want to ask for my partner if she can take period-delaying pills like Deviry after taking an i-Pill last month. Her periods started on March 1st, and she took the i-Pill on March 7th. Seven days later, on March 14th, she experienced bleeding for a few days, which was lighter than normal periods. Now, we need to attend some religious ceremonies around April 14th, for which we want to postpone the periods. First, when should she expect her next period—around April 1st or April 14th? Her cycle is usually around 31 days. If it's on April 14th, can she safely take period-delaying medication around that time?