Am I pregnant

So black circle is 1 guy I had sex with while I was on my period blue is another n orange is the most recent.

I know why did I have unprotected sex with 3 guys 🤦🏻‍♀️ I regret it I was jusr heartbroken idk but the app says I was supposed to start my period today n I didn’t. I feel naseous I feel like that sometimes when I’m about to start it and I have a IUD copper. I’ve had it since feb n it’s worked so far.. they all finished in me the 1st n last guys we only had sex once a couple of rounds but I had just met both of them but the blue one I had been having sex with him for months and he always cummed in me n nothing ever happened. I’m so scared I took a test earlier but it said negative so idk