Sympoms of pregnancy

I just went through the thing where you think you're pregnant,not sure?
I started spotting pink,I never do this!First i started having pain the day before in my lower right pelvic area.I thought it was my ovary,still not sure.Anyways the pain gradually got worse sending itself around my side into my lower back on the same side.I thought i was pregnant because like i said i never spot pink,only the two times i was actually pregnant.I went and bought a pregnancy test and it was negative.Later that night i started bleeing heavier and it turned red with some clotting.It stopped and got lighter to pink again and stopped.I started bleeding red again.It was coming in pathes.The next day it was more normal bleeding but it was a different shade of red than i normally have.That night it lightened up again and turned to a pinkish color again.The next three days i pretty much just spotted a light pink to light red color.My very last day it turned really light pink again and i never do this.My period use to be seven days long for the past year it has been slowing down more and i have only been having it for fve days now.This last period was also pretty painful compared to my normal period,especially in my lower right side.I have been having a frequent urination for about three weeks now.M breasts have been more tender and i've even been naustious.My legs were aching real bad during and before my period.I felt bloated,real full especially when i eat.My weight has always been 130.I have recently weighed 141 lbs.These symptoms made me think i was pregnant.I'm pretty confident that i'm not now that i had this period and it had some clots in it.I still have most of these symptoms especially frequent urination.I have had cysts before when i was 14.I've had two children since and i'm 28 years old now.I haven't been to the doctor yet.I;m going for an annual exam thrsday,maybe that's a good start.