Okay so this might be a confusing post but I’d like another persons experience or input. I got my period on Sept 9th or 10th. I had intercourse on sep 16th took a plan b on SEPT 18th but vomited 20 minutes later. I began bleeding on the 25th until Oct 4. I then had intercourse on the 15,16,18,19 . My apps say my period is 4 days late I’m on CD 33. Has anyone experienced this ? What was your outcome!