Pregnancy chances

Oh my god help! So I had unprotected sex last night and the guy didn’t cum inside me BUT (tmi we had a few rounds) and I’m not sure if he ‘cleaned up’ each time he came after a round before going for another round. Now I’m scared cause I cannot afford to get pregnant 😰😰 can I get pregnant from pre cum and also if he came but didn’t clean up and we had sex after he came the first time 🤔🤔 please help me oh my god 😓😓😓😭😭😭