So this month I was charting regularly and using OPKs bur I never got a good dark positive OPK well i read the instructions again and for the brand I had it said it the line is almost as dark as the control line or close in color to it. So needless to say I switched to a different brand for next month. I'm just wondering.... Because on 2 and 3 dpo I was very nauseous first thing upon waking up those mornings and then on 5dpo I had sore nipples. Over time I have come to find out that sore nipples come as pms but af isnt due for a whole week and I never get nauseous with AF. Anybody have similar experiences and and up getting their BFP that same cycle???