So I’ve been on birth control since March of 2017, never have missed a day. And on October 6 I started my period and it finished around the 10-11th so I still had a couple placebo pills left before I rolled into my new pack. My boyfriend came in me while I was still on the placebo pills so I got Plan B just in case and took it that night and a couple days later I rolled into my new pack for October the 12th to November 8th and I didn’t get my period this month for November, is it because of me taking the Plan B last month after my period for last month was already over?