faint line at 15dpo(cd31) pos opk at cd16 af not express till cd41

Jen

Hello all new to posting. Please give opinions advise to what you think ... I tested for a few days already and my line stays relatively the same. I’ve had one mc last year and took 1 round of letrozole as clomid didn’t work. Also I’ve had a few cramps on my right side that come and go worst is at night.