13 dpo pee test not pregnant

I went to planned Parenthood yea bad mistake I needed a hcg pregnancy test done because wen I get pregnant the hormones in my body take longer to detect pregnancy so I asked them before I came told them my pregnancy history and everything this dumb ass lady goin to tell me cum back in two weeks look I haven’t had a period in a month I shud of been started she told me my period not supposed to start til the end of the month I thought this my body ik my periods very well lady I call my real doctor this morning for my blood