I'm concern I got off birth control in June cause I was a week late on birth control so I stopped taking iti thought I might be pregnant. But I started and home test was negative an blood work was <5 whatever that means so my last period which was the one I started after I was late the first time an it was July 12-16 an I'm usually 28 days I am 2 weeks late this month I'm having smyptomes as if I was on my period I haven't yet took another home test yet but I am on Monday on my day off so could I be pregnant or is it birth control? Me an my husband use condoms an use the pull out method so what could cause 2 week delay