Has anyone had a faint line (see photo) around 14-15 DPO (or <a href="https://glowing.com/glow-fertility-program">IUI</a>) and gone on to have a viable pregnancy? I am concerned the faint lines I got today and yesterday are too faint based on how far I am past ovulation. Any experience/thoughts would be greatly recommended.

Update: I had blood work today and my HCG came back at 7, which is very low at ~15 days past an <a href="https://glowing.com/glow-fertility-program">IUI</a>. My fertility team told me to expect my period/that this was likely a chemical and not viable. Anyone have a similar experience?