BFP on day of implantation bleeding? Please read!

Kristy • 29, Mama to miracle baby girl after 3+ years of infertility, Dog mom, Speech-Language Pathologist, TTC baby #2
Hi ladies! I am on CD 30 and 10 DPO- AF due Sunday. I'm fairly confident I just experienced implantation bleeding (pinkish brown thick discharge) and I have light cramping. Has anyone gotten a BFP on the day they had implantation bleeding?
I'm asking because I am supposed to have an esophagram done tomorrow which requires radiation, and now that I think I have a chance this month, I'm super worried! I have been having heartburn, nausea, bloating, and I had a CRAZY vivid dream last night. I get my hopes up every month and this is the second month taking a break from the tracking and "trying". Any advice you ladies have is always appreciated!!