 [ Symptoms ] i had sex on my 20th and 21st day of my cycle and my period is now 5 days late how possible is it that i am pregnant  i am a healthy 18 year old that has been stressed about graduating in a little less than two months now i have a boyfriend and we did not use protection the last time we had sex i do not know if i am just late due to being stressed or because i am actually pregnant i have been way more tired lately and my body aches way more than what it should even though i have been going to bed way earlier than what i use to i do not work out or do anything that would cause me to be this tired or achy [ Disease ] hi there i have had that happen to me a couple times before your period could be just late since you are stressed do you know if you ovulated those days if you did there is a high chance you are pregnant i would wait a week and take a pregnancy test to make sure good luck