My period was suppose to start around this time but I'm about 6 or 7 days late and usually that's normal for me, I'll around the 6th or 7th day of being late start my period but this time it's different. I''ve been having brown discharge/blood here and there and cramps, plus really bad lower back pain one night and then a bit of pain here and there, super tired all the time and my boobs are a LITTLE bit sore/tender not much though. My period hasn't come at all, just brown discharge and blood. My boyfriend and I don't use condoms, we pull out and have been successfully for three years. We have no STDS, so that is ruled out.

But, could I be pregnant? I'm not on Birth Control.

First of course you could be pregnant, surprised it has not happened long before this. Pull out is not a method, since there are plenty of sperm in the early fluids to make you pregnant, so you use NO method really. You merely lower the number of sperm that goes into you.

And yes these are pregnancy signs, I would wait one more week, and the pregnancy test using the first urine of the morning

Pregnancy should be expected doing sex this way