Ok. So, I'm 19 and have been sexually active for 2 years. I have always had irregular periods since I started but my doctor says that it is normal. I had unprotected sex with my boyfriend but he pulled out and about three seconds later, he ejaculated. I saw it start and stop. After, he took a shower, I used the restroom and we didn't touch down there the rest of the night or next day. Even though I am irregular, I estimated my period to start about two weeks ago however, i wasn't very concerned because I've been known to go up to 70 days between periods, again my doctor says its fine. My cycles normally last about five days with a normal to heavy flow. Three days ago i got brown discharge that I assumed meant the start of my period. But the brown discharge has been continous and I've only had a spot of blood. No cramps or anything. I have started a new diet where I only drink water and i am an intense caffiene drinker, could this be affecting my period and making me have brown spots rather than blood?? OR How likely is it that i am pregnant???? I haven't taken a pregnancy test yet, but I plan to. I just want to know your opinon before i do take the test. I need advice immediately!!