LONG STORY BUT PLEASE READ!!!

Okay, so this is sort of a long story. So me and my boyfriend had sex October near Halloween. I don't remember the exact day. We used a comdom but he was still scared so I took a day after pill. Well us being not smart, had sex the next day with a condom, but didnt have it on the first 5 minutes, so just in case, I took another one. Then the a couple days later we mad the same mistake and I took one more. NOT knowing that it wasnt good to take that many. Well I waited and waited and 4 weeks later my period came. Before my period came I was having cramping and short breathed and bloating. Well she. The period came I took a pregnancy test just in case and it said negative. So I didn't worry and had my period for 7 days, bad cramping as usual and a usual flow

So I figured it was a period RIGHT? well when my period ended 7 days later I was still having light cramping and still sometimes feeling short breathed and just lower stomach pain. My period ended 2 weeks ago and I'm having that pain still to this day. Well I took a pregnancy test today and it said negative. But I'm wondering why I'm having pain. Could I still be pregnant? Could I not be? The tests should have said positive by now and I wouldn't of had a period. I need help! And please do not bash me for taking 3 pills. Could the pills of messed me up and I'm just still being affected by them?!?