Since coming off the pill at the beginning of July I've always got positive OPK's on the 20th or 21st of the month. I'm using a Persona Monitor which works the opposite way round to the Clearblue monitor and today is CD10 and tested this morning as it asks you to test from day 10 and gave me the egg symbol which indicates I'm due to ovulate soon. I thought this might have been a glitch with the monitor as I have been taking antibiotics since Friday Cefalexin for a urine infection but I used a clear blue digital OPK as well and got a smiley face and when I ejected it the second line was the darkest I've ever had on one, I then did a boots OPK 2.5 hours later and it too was positive. I also started taking vitamin b6 on Saturday but can't imagine this would bring my ovulation forward in such a short space of time. Can I really go from a postive OPK on day 20-21 to a positive OPK on day 10 when my period has only just finished, it has been fairly light this month but did get a little heavier in the middle. What do you think ladies, is it the antibiotics messing with my body or messing with the OPKs?

Antibiotics shouldnt mess with your opks, for some reason your Oing early, three +' cant be wrong! Perhaps your body is just settling back into its normal cycle finally after bc. Get to catching that eggy missy and good luck!

Sounds like it to me! Fx'd mine makes a huge jump from CD24 last cycle! Get BDing girl! x