I am pregnant for a guy I don't want to marry.He wants to come and see my people.pls,what do I do? ?

I was drunk and allowed him to me.The guy is an illiterate,not from my place,short.Infact, I essed him and found out we can not match.I just found out I am one month pregnant.Do I stop him from seeing my people as he plans to see them tomorrow? Please help me.