Question!

Brittany • Twin mom! My identical twin boys just turned 3 this June (2020) and our daughter is 1 1/2! Full time therapist and mom of 3 kids all 3 and under.

So I have twins that are almost a year old. We breastfed so I have only had one period since they were born. I have gotten two positives on a HPT and a bunch of negatives. My period, if going by the regular cycle, is 7 Days late right now. Is this likely a chemical pregnancy? I’m still experiencing some symptoms of pregnancy. My milk has dried up almost instantly, for instance. Any insight?