AF comes every 18-20 days for me. I am now seven days late and should be ovulating today. In all I have taken 4 jp 2 negative 2 positive with the last 2 being negative my question is should I get a quantitative blood tests I have children and with one of my pregnacys nothing showed up until I was 4 months going to a doctor to find out why I wasn't getting pregnant any does anyone have any advice on what my next step should be