Hello I came of the cerzatte pill at the beginning of March 6wks after, I had a period and have subsquentially had two more regular as clock work. I am trying for a baby and have been monitoring my ovulation as soon as this happens my breasts become sore and stay that way for two weeks till my period begins. Any idea why this happens?

Also I did a pregnancy test last month using an early response test it was positive but that night I had a bad night sweat and when I did another test the next morning it was negative.

To me it suggests my hormone levels are not quite right any advice would be welcome.