Thread: irregular period?

okay,so, october my period was 5 to 6 days late, when it came on the 27th it was like my normal period, moderate and 4 days long. I was kinda stressed that month so I figured that caused it. My november period (currently on) was 2 days later than expected, on the 29th, it should be ending tonight. I normally have bad pain, which menstrual tylenol always helps, but when my period came this time, the pain was slighlty worse, and the tylenol didn't help at all (but a nice warm bath did for a bit) the abdominal pain mostly went away, but the back pain hasn't left. I've been reading up on pregnancy signs, and the signs I've been showing are nausea (since the middle of november), lower back pain (which has gotten worse with the period), and frequent urination (which isn't too abnormal for me as I drink a lot of water and v8). Me being 18, and living with my parents who have a strict no sex before marriage belief, I'm hoping I'm not pregnant. Me and my bf have discussed children and have decided to wait a few more years. If anyone can help, it'd be appreciated. I'd go to see my doctor but won't be able to til monday.