Faint Line? (Unexplained infertility)

KC

We had our daughter via <a href="https://glowing.com/glow-fertility-program">IVF</a> 18 months ago. I know getting pregnant naturally after going through infertility is a slim chance, but I had faint pink spotting after intercourse 10 days past ovulation. I am now 12dpo. Am I having line eyes? This was within 3 min