Help please

Ok I have taken ovulation test for about two weeks now and they keep coming back negative... And now according to glow it has changed when I am suppose to have AF so now I don't know when I can take a pregnancy test caz everything is being changed and now I would have a 35 cycle caz I had AF on March 25 and now suppose to have it on April 28... So confused maybe I missed my ovulation day which could of been couple days after AF ended? This is so frustrating to figure out! Anyone else dealing with this?! ​