Unexpected BFP 😳😩

Hey y’all so I have twin boys and just found out I’m pregnant again.. I slept with someone on the 6th of September and a few times since then. That night he didn’t pull out and I took a plan B the next evening.. Is there any way that this can be a positive after only being 2 weeks and 2 days pregnant?? And I thought the Plan B worked well? 😩 I’m 6 days before my next period and the bright red dots are when I had my last period