Hey ladies. My period was due 4 days ago and it didnt come. It usually comes like clockwork every 28 days but this month I'm late. I have had all my usual PMS symptoms except cramps. I had unprotected sex this month and we used the pull out method each time. I took 2 pregnancy tests already and both were negative. My CM is thick and creamy in texture and my cervix is low. I'm honestly worried because I dont know what's the delay about. Should I take another test?