Possible chemical

I got a faint pink line 12dpiui and dr had me take a blood test, beta was only 9, she said it’s likely going to be a chemical. I have taken frer for the past three days and the faint line gets a little darker but I also too a digital test and it says Not Pregnant. Feeling so sad and unsettled. Anyone been through this and went on to have a healthy pregnancy or anyone want to send digital hugs? I’m feeling blue.