Period or no?

This was my first time ever on birth control and I had a little bleeding here and there I take my pill at 10pm (at first I had been taking them between 9:50 and 10 but I had a hectic day and went 2 hours past time so I made an alarm). I have been having light spotting and blood one day. My period was due on the 30th and I have sore boobs and my nipples are really sore. Also it's coming out more like brown and red and in clots not liquids. I asked my mom about it and she said that this was normal. I fooled around on a placebo pill day but the least that would have gotten in me would have been Precum and I take my pill right so I doubt I'm pregnant.. could I just be having bad symptoms or should I see a dr