New to this, looking for advice

So I've been on the pill for about 8 months and recently just decided to quit birth control. On my last pack of pills last month, I noticed in the middle of the pack, I was a pill behind meaning I missed a pill at some point. Looking back at my period apps, I had unprotected sex a few times during the window of the missed pill. The last week of being on the pill, I had very light cramps and back pain which is uncommon for me on the pill. A few days after quitting all together, I lightly spotted a brownish discharge for a couple of days with light cramps and then it stopped. The spotting was so light, it was never even enough to go on a liner and only appeared sometimes when I wiped. It's been over a week since I've been off the pill and I'm starting to have light cramps again. Is there a possibility that I'm pregnant or is this just normal when you get off the pill?