We live in 21 century - time of technologies and computers I hope) There are soft for that case ovulation calculators. I use this http://femta.com accuarte ovulation calendar.
Chek out your cycles by that and be sure.
We did bed today (this afternoon) just in case and we will again until i dont see it anymore!
I used to know when i was ovulating as i used to have cysts on my ovarys and my sides always used to hurt when i was ovulating but now that they are gone i have to go by EWCM. Im going to buy an ovulation kit for next month though as sometimes the guessing game dosent work!
You could be! The last day of EWCM is the actual day you ovulate. You should BD whenever you see EWCM, just in case.