Another chemical pregnancy??

[Berrylady]

I had a chemical last month, got a very faint positive this month at 12DPO, now 15DPO and line isn’t getting darker and had a negative digital test. Likely another chemical?? Praying it’s not

I had a 'late' period with all my chemicals, where I bled a bit heavier than a normal period around a week after a positive result. I had 4 consecutively but then was successful, so try not to give up hope.