I am 3 days late on my period and we caculated last month when I would be ovulating, my period is never more than 30 days and never less than 28 days but not I am kind of getting worried, I took several pregancy test and they are all negative. I did talk with our midwife who said to wait longer and she told me some women it can take up to 2 weeks after your miss period to get a positve result. Has anyone else had this and later was pos