The first day of my last period was March 25. On April 15 and 17 I had unprotected sex, and on April 16 I took Plan B just to be safe even though I was expecting my period that Saturday and as far as my period tracker knew I was not ovulating. I have read up on implantation bleeding and the side effects of plan B. My period started right on time yesterday but a lot lighter than usual. Yesterday was a mix of bright red and some brown gloopy stuff. Super light period but it did fill up the pads. Today I was out for hours and when I came home and changed the pad there was barley anything. I guess I’m just a bit worried even though I feel I shouldn’t be so I am looking for more opinions. I also just started birth control pills this morning.Thank you for your help