How would you mommas feel about this?

I am 24 i have one child and I have been off and on with the babies father since my child was born, well i met this guy and leave him after discovering he is a hugh scam artist and he tells me he got off inside me so that if i got prego i would be his forever then by babies dad says yeah i been getting off in you for a couple weeks. i know I should have used protection (condom) and i didnt and every birth control i take makes me sick and i have an allergic reaction to it my throat swell etc, I am not prego i took a test today, but should i be mad at them for not telling me or mad at myself if i do get pregnant because all these events happened within the last couple weeks.