can't enjoy my blessing

I'm so stupid . I should have just stayed home the night I cheated on my boyfriend & I would know for certain I'm pregnant by him 😣😣 I was just very very upset with him & felt like I needed a sense of belonging . now I can't fully enjoy my pregnancy because I'm baffled about who I'm pregnant by 😞😞 so depressed ... so stuck .... idk what to do .... (I told him already btw - still doesn't make me less stupid)