I have been having a lot of symptoms of pregnancy?? like peeing,nausea, dizziness, sleepy all the time, cranky all the…

I have been having a lot of symptoms of pregnancy?? like peeing,nausea, dizziness, sleepy all the time, cranky all the time!!! i have tested to see if i come out positive and nothing yet should I wait till I am late on my period?? because when I was pregnant with my first born son I was 15 days late and on my miscarriage I was a couple of days late!!! should I wait till I am late on my period to see if I test positive because all I have seen are negatives !!!!