Its day 52 with no periods. My cycles are irregular and i am hypothyroid and pcod.But aftr Thyronorm for last few months it has been pretty regular sumwhr around 35 to 45 days cycle.TTC now and no periods yet.checked on day 45 and was negative.Have been experiencing sudden cramping and backache for jus a minute and then nothing.Sore breast difficult to wear bra.Also getting milky discharge sumtimes.Could I be pregnant? Can someone pls advise.