So last month my period came earlier and lasted longer.I ovulate late most of the times.My period is not extremely stable but it is not unstable either.I get my period once a month,expect February because it is shorter and my my cycle lenth is 34-36.My period finished on the 31st last month and this month my period still hasn't appeared.I tried a pregnancy test today.I was so disappointed.I trust clearblue very much but I dont understand what's wrong.

P.s I dont have pcos