Help me

Ok so I have had sore breast for about a week it two I'm suppose to start tommorrow but I don't have any cramps all I have is rlly sore breast and they are really swollen am I pregnant we are trying to have a kid. Honest answers oh tmi but last night me and my fiancé had sex and this morning I woke up and a lot of cum was all over me like it's never happened before plz help me I don't have any diceses