 [ Symptoms ] could i possibly be pregnant  last period may 16th unprotected sex on june 9th supposed to start june 16th still have not if you think i am pregnant when should i take a test  side notes  feel as if i start but do not   i was throwing up at 2 am on saturday the 15th i was nauseous the rest of the day   light cramps  the guy i had sex with says he only has a 3 chance of getting someone pregnant  i have been tired lately i also have been having light heartburn i think  if anyone can help me it would be greatly appreciated [ Disease ] anytime that you have unprotected sex you have the possibility of getting pregnant so do not do it and make that guy use a condom no matter what fairy tale story he told you about the 3 chance of getting you pregnant that is baloney do not you know that men lie yes you could be pregnant so you can really take a pregnancy test anytime now but you may need to repeat it again in another week or so if you do not have your period your medical provider can also order a very sensitive blood pregnancy test if you want to increase your accuracy