So I started letrozole and was suppose to ovulate around the 11th of this month. I took OPK’s and believe one was positive and did the deed everyday. I then was testing a little after just in case and then my OPK’s got lighter. Yesterday I was cramping really bad and took a pregnancy test and OPK and they were a little darker but the pregnancy test was negative so I was confused. Then today I took another OPK and it’s dark. So am I ovulating again or possible pregnancy?