Help! 13 DPO, positive line tests, negative digital???

Genevieve

All my line tests are coming up positive, including a FRER taken at 11 DPO. I’ve been taking the cheap amazon tests every morning and the lines seem to be getting darker.

I took a digital this AM and the result was negative?? I know they are less sensitive but I’m worried.

The cheap tests picture: bottom test is this morning (13 DPO).