I'm sooo confused! I'm 37 ttc for the first time & I started using cvs opk starting on cd9 & using fmu (per instructions). I was also using wondfo opk strips.. On 2/8 the cvs one was almost positive as well as the wondfo strip.. In the evening wondfo looked darker but not positive yet. On 2/9 fmu cvs positive, but wondfo was now very light line (in the morning & evening). On 2/10 cvs opk was positive again but wondfo negative all day .. On 2/5 BD, 2/8 BD, 2/9 couldn't BD husband has ED & on 2/9 BD.. Do you ladies think I might stand a chance of not having missed the big O?