Am i pregnant? whats going on with my body HELP ME PLEASE!!?

If your periods are usually otherwise normal and at the same time every month, I would first take an at home preg. test then depending on the results go to the dr. If your periods are about the same but a little bit off schedule and the test is negative, I wouldnt worry too much. many things in life can change a woman's cycle, including stress levels, age, and lifestyle (smoking, drinking, etc.) I hope this has helped