Still no AF

Kayla
AF was due 11/14. Still hasn't come to visit, 10 days late. Took a pregnancy test 11/14, 11/15, 11/16. All negative. Should I test again?! I have been trying since June 2015. Have always been on time! Calling doctor to make sure nothing else is wrong. Nervous Bc I have been having severe cramps after orgasming after intercourse.