Did I do well by calling him and cutting him off?

Hey guys I need to mostly just vent and hear some advice. Im really sad and feeling betrayed. So 6 months ago I started hooking up with my manager and no one could know bc he would get in trouble. Before we even started hooking up I told him the only way I would start hooking up w him is if he promised me he would never ever hook up with anyone else at my job so he swore up and down that he never would. Throught out the months I had a suspicion that he did hook up with another of my coworkers & I would ask him about it and he said he would never do that and he would talk all this shit about her. Him and I started being very intimate and he would tell me stuff like he loved me and that he would want to date me if I quit the job that way he wouldn't get fired. I know him and I started having feelings towards each other. I find out that he actually did hook up with that certain coworker and even got her pregnant and they went together for her to get an abortion. She has a boyfriend now so this was a while back but I just foind this out. I felt my heart dropped to my stomach bc he lied to me this whole time, got her pregnant, I trusted him so much and now he stabbed me exactly where I told him it would hurt me. So I called him and told him I want nothing to ever do with him and I found out about him and her and that I want him away from me. He acted dumb like he didn't know what I was talking about but he said its fine he respects my descision. I then told him he is dead to me and hung up on him. Im really hurt but my woman intuition was truly right this whole time. Now I need to get a pregnancy test since I am days late from my period and I feel extremely anxious and sad about everything. Being pregnant by him is the last thing that I need specially since he already got the girk that he lied to me about multiple times, pregnant. I feel so ashamed and embarrassed but now all I can do is learn from this.

Did I do well by calling him and cutting him off?
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