Lately I am tired all the time. July 7th I had somewhat of a period it was very different almost brown. And I always have regular periods every 28 days on a Thursday. Now one week after my strange period I am spotting pink blood when I wipe also having pain/discomfort on my left side. Could I be pregnant?

If you've had sex, there is always some possibility of pregnancy. The ONLY way to find out if you're pregnant or not is to take a test or see your doctor for a test.

As Just Curious said, If you've had sex, you could be pregnant. Spotting during pregnancy is fairly common. What concerns me is the pain in your side and the 'pink'(fresh)blood... it could be an ectopic pregnancy. Get an over the counter test and see if you're pregnant~and if you are I think you should go to the doctor asap. If it is ectopic (baby in your fallopian tube instead of your uterus) and it continues to grow, your tube could rupture and you could hemorrhage and/or bleed to death. So, really--see if you're pregnant and if so, then go to the doctor about that fresh blood and the side pain. I wish you well.