Ovulation question

Ke

So last month I accidentally started testing with OPKs too late and missed ovulation. This month I started testing earlier. Yesterday the test line was still VERY faint and today it's MUCH darker though not positive yet. I'm on CD 14 and my cycles are around 31-32 days long. Does anyone more experienced know about how much longer until this is positive? Should I test again tonight since it progressed so quickly since yesterday morning? Thanks!