Help me

Warning, this will be long...So about a week or so ago I lost my bc pills. I don't know how or where I lost it but when I told my husband he got pissed cause he doesn't want a baby right now. He actually thought I had purposely thrown them away! All the times we've had sex since I lost them he's used the pull out method. Is that truly effective? Anyways today he told me after sex that he cummed inside me. I was surprised. He asked can you get pregnant now? And I said I probably not (my chart says its only a 3% chance) Later that day he told me in the car "I'd be happy if you're pregnant." I had to take in what he said cause I've waited two and a half years for him to say that! Do you think I could be pregnant?