I had a chemical pregnancy the beginning of the month and i would have never known i was pregnant if i had not tested early since i lost the baby and my period started the same day it was suppose to, but I'm on CD 22 and still no positive opk i thought since i had the chemical my ovulation may be a little off but i didn't think it would be this off since technically my period started the same day it was suppose to. ...anyone else have this happen