Could I be pregnant?

So, long story short...I was hanging out with one of my best guy friends and we unexpectedly ended up hooking up for the first time with each other last Friday... I’m on birth control and was told after trying for almost 2 years with my ex that I’m unable to get pregnant, at least the natural way... It was a spontaneous thing that happened so stuff happened without a condom, but I figured I was good with my chances of getting pregnant naturally and being on birth control... Since that day I’ve been cramping every day, I’m constantly bloated, and just recently started spotting and I just got off my period last week before we had sex so I see no other reason to be bleeding right now. I haven’t really had any other pregnancy symptoms other than being tired more than usual. Could it just be that I’m freaking myself out or could I honestly be pregnant with my best friend’s kid?🤦‍♀️🤦‍♀️🤦‍♀️🤦‍♀️