Hi! So, just a few questions for you experienced TTC ladies. I'm irregular and I used OPKs this month. I had positive OPKs on 20th and 21st (my smiley- CB advanced). On the 22 & 23 I had slight minimal pink spotting. Which I was counting as ovulation spotting. Which day would count as my start of # of DPO, since my test and spotting were spread over 4 days??