Hey I ama 17 year old girl and I have been very sexually active in the last month and I am not on birth contol and we arnt using pretction. I am having to go pee lots, have sick feeling, sore lower back, enlargement is breasts, spotting blood and I a have missed my period it is a month late! Am I probably pregnant.

Yes, it is very possible you are. Please take HPT using first morning urine, then make a doctor's appointment. If the test is negative you need to find out why you are so late. If it is positive you need prenatal screening.