He came in me help (shorter)

Off the pill for the past 2-3 weeks (unrelated reasons), I wanted to wait until I'm on the pill again, he said okay and broke his promise yesterday (completely forced me). No never meant no to him. He came in me. I am leaving his abusive ass today.

What are my options for preventing this from happening? What can I do now? Plan B doesn't work during ovulation. I don't ever want to have his child (psycopaths and narcissist genes - whole family of them) and I am against getting rid of it surgically. He came in me less than 12 hours ago.

Advice needed on prevention. Help me