Moving in together within 2 months seems rather soon. Getting to know someone takes time. Did he ask you to move in?
Hi. Welcome sweetie. I think sometimes when we are under the influence, we say and do things we might not otherwise. You were with your boyfriend which is a safe person. I'm not sure why you asked him to ejaculate in you and all of the other information you gave him but this is one of those 'it is what it is' moments. :>) Do not totally beat yourself up here but let's try to mitigate the damage and move on. So, you could act like you aren't fully sure what you said. You took plan B so won't get pregnant from it. Whew! That's good, right? One thing solved in the situation. Who knows why you said it. I wouldn't try to analyze it. Just accept it happened and now minimize what you told him. Tell him you were all buzzed up and feel bad about that. Want to be more careful in the future with that. :>) Just kind of be evasive and move on. You're good. No real harm done. I want you to know that plan B though will mess up your period for a little while, so expect that. You will most likely be irregular for 2 to 3 months after taking it as it is a lot of hormones in the system. Don't freak out about that, it's normal. Hang in there. hugs