Clearblue Advanced Digital Ovulation Test
Best Overall — Tracks Estrogen + LH for Longest Fertile Window
The Clearblue Advanced Digital is the most comprehensive over-the-counter ovulation test available. It tracks both estrogen and LH — identifying up to 5 days of high fertility (estrogen rise) plus 2 days of peak fertility (LH surge) for a total 7-day identified fertile window vs the 2-day window of LH-only tests. The digital reader eliminates line interpretation and displays clear smiley faces for High and Peak fertility days. Used in multiple clinical trials and the #1 OPK recommended by reproductive endocrinologists.
What we loved
- Tracks estrogen AND LH
- Up to 7-day fertility window identified
- Digital — no line reading
- Clinically validated
- High / Peak digital display
- Most recommended by fertility specialists
What to know
- Higher cost per cycle (~$3–4/test)
- Reader purchased separately
- Requires daily morning testing