pregnant on junel? Really weird period trends, please help!?

[Countrygurl]

Kinda long question, sorry. In August, I was on Yaz bc pills. I had sex with my partner. Sometime around the same time, I started having problem with my period. I started my periods before the inactive pills and would sometimes have a 4 day period, sometimes they would last much longer. I made a dr appt because of my period not stopping. 2 months later, he started me on junel 1.5/30. I was pretty worried about maybe being pregnant even though I was bleeding b/c I had heard of that happening to other people. Had 4 negative tests. Used EPT's (the good ones). The first month on junel went pretty much like it was supposed to. Had a little spotting. The second month, no spotting but really heavy period with clots and cramping. But this month, a week after my period, I started a light bleeding (heavier than breakthrough but not real heavy). This lasted for 3 weeks. Then, two days before I was supposed to start my period, it stopped. Now I am 5 days late. I'm really scared that I'm pregnant. I'm going to take a test today, and am going to make a dr appt. Just wanted to see if anyone has had any experience with this. Oh yea, And I only had sex 1 time this month, 3 days after my period stopped.