What do I do? panicking rn?

so i’ve been seeing this dude on a sexual level. we have seen each other around before we did but never really spoke because he was in a relationship at the time. now that they are broken up, i hit him up and asked him if he was still in a relationship with the girl and he denied it and said he was purely looking for a sexual relationship since he just got out of one and since i was down with that and since i wasn’t looking for a relationship whether, i agreed. two weeks into us meeting up occasionally to hook up, i’m at home and i’m the type to lurk online to find out a little more information on his past. i find his ex gf’s page and i find on her page a post of her posing but she’s PREGNANT (looking about two-three months). i’m kind of panicking and don’t know if i should ask him about it since i’m the one that went and did my own like detective scheme. i know it’s not my business but if his ex girl’s is pregnant with HIS kid, he should’ve at least mentioned it to me as we ARE hooking up. i don’t know what to do and i need advice on what i should do.
What do I do? panicking rn?
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