Cheating

Recently found out my partner has had a one night stand.. he went on his friends stag weekend abroad & cheated whilst drunk.

I'm 7 weeks pregnant-

I'm hurt yes, angry not really.

I love him and we've been together 6 years we have a house a dog & cat together..

Do I end it just because of a stupid drunken mistake? Or we move on from it for the sake of our unborn child ☹️. x