Faint line?

This was my third month of Clomid...2.5 years trying in total. I had my day 18 and 21 progesterone levels done and they came back at 32 & 56 which I believe is good? My cycles have been about 30 days while on clomid so going off that AF is due in about 4 days. I took a FRER this morning and can see the faintest line, it was white at first but then within the three mins was a faint pink, my worry is should it be darker if I’m about 12 DPO? can anyone else see it? And any positive stories would also be lovely. 

Thank you xxxx