helpppp!!!

okay my bf keep wanted sex last week . idk why but i didn't wanted bc last time i had high chance of getting pregnant.. anyways he kept on asking then he said at lest anal sex for 1 time . i finally said OKAY!! but he still cum out its was a week ago now i feel kind of sick and i feel totally different ik i cant get pregnant from anal sex but i really feel but like lower back hurts soooo badlyy and i use to hate eating

now i eat alot even staff i use to hate .. and my pd is late for 3 days 😓😓😓😓😓😓😓