soooo confused!!! bfp a week after period?

Jillian
Has anyone ever gotten a bfp a week after their "period" ended?! I've been feeling weird...had a positive opk yesterday and figured "there's no possible way I'm pregnant" but I felt so weird again that I took an hpt. And I got this. I'll wait a couple days and call my dr if the line gets darker. Just wanted to hear if anyone else has had this happen...