4 weeks 3 days DPO 17 chemical

I had a feeling. I posted photos of the progression in a group page and was so excited to share but I kept getting posts about it looking like a chemical pregnancy. On 4/17 I took a blood test and my HCG was a 10. I waited until yesterday 4/21 to take a digital and it said not pregnant on 16 DPO, 3 days past my expected AF. Last night I felt dull cramping and this morning i peed on a First Response at the line is lighter. Crawled in bed and cried very early this morning. Just got up to check and I have brown discharge as long with dull cramping. I’m trying to mentally prepare myself.