Okay so I am almost 2 weeks late. Have all the symptoms of being pregnant but both the Urine and blood tests are negative on being pregnant. How do I know when a new cycle begins if I've missed my period? The SO and I want to keep trying but now how do I keep track if I am late or when my next period should be if I haven't had my period in a month and a half?

P.S. Getting pregnant seems a lot more complicated than how they made it out to be when we were teens haha!