Girl say says we are moving too fast trip report

[mouseman]

So I take her out on Wednesday. We go to a bar and get pretty buzzed. I take her back to her house and we just make out and some other fun stuff, but no climax ensues.
I go to her house on Sunday, buy her flowers for her birthday, get her drunk and then have sex with her a bunch of times.
She is a teacher and missed work on Monday because we drank too much the night before. She tells me Monday that we can't get drunk anymore on weekdays because it is screwing up her work.
She calls me up today telling me we are taking it too fast. We are taking it too fast because I invited her to my house for my moms 50th birthday party on Sunday.
1 important thing to know is she is on her period. I like this girl and would like some suggestions on what to say or do in this situation.
Thanks