Chemical Pregnancy?

I used letrozole and ovidrel last cycle and tested out my trigger. My tests never went truly negative until about 13 dpo. On 13 dpo, I got a negative frer and than on 14 dpo, I got a vvvvvvfl positive on a frer. That day I started spotting and than started cycle day 1 about 2 days later. I didn’t get blood work done but I have never gotten a positive on a frer before. Is this a chemical pregnancy?