Girlfriends sudden change of personality :/

Maybe she realised she was being a bit off and grumpy with you and is making more of an effort, and realised how much she likes you?

It's only a good thing, so don't think much about it haha.

That time of the month my man, that time of the month.

Keep anon please.
Been with her 2ish months now, so obviously i dont know her fully yet.
But over that time ive come to understand how she is. You know, how someone is in general, and what i learnt was she was very up and down.
She would be very happy at one point, but then she would go kind of distant and cold with me. She lost her virginity to me one month in, but she remained like this. I just put it down to her being her, thats just the way she is.
Well last monday (6th december) she stopped taking the pill because it was causing her to bleed often. After stopping it she came on her period on Wednesday, which ended on Sunday.
Saturday night she sleeps round my house, we have a pretty awful night together. We argued and she was distant, then affectionate, but we generally got on eachothers nerves.
Sunday morning, she asks me if i want to go to her house (she never asks this, normally when we sleep together we just do our own thing seperately the next day).
I go round her house and have a brilliant time, she comes up with the idea that we go out for a meal, so we do. We have a great laugh and i really enjoyed it.
Go back to hers and shes much more affectionate, wants to cuddle more and kiss and stuff. Was a lovely day tbh.
Ive just seen her now, went to hers (Tuesday night). Again, shes really affectionate, had an awesome night with her. Shes texting me when im driving home with really sweet texts.
I just dont get it, she is being totally different. Normally when i go round her house, she doesnt smile when she sees me, and it takes her a while to start cuddling and stuff. But today she had a huge smile on her face when i came over and just generally looks a lot happier.
I can only put it down to her quitting the pill, as ive heard some horror stories of girls going suicidal on it, huge mood swings and depression etc.

Unless anyone else can shed any light on this? Shes even planning how we will spend new years eve away with eachother, and holidays and stuff next year

I know i shouldnt think about it too much but its really weird.
She doesnt seem to feel any different personality wise since ending the pill.
Also she swallowed tonight, not really relevant but she said she would never swallow for anyone, yet tonight she did and enjoyed it lol.
So weird

Its the pill - or coming off it rather. Quite common. Your complaining about her being affectionate, why?

It's probably from all the hormones in the pill. Maybe now she's off it she'll be more consistent in her moods.
She also may have realised that her moods have had an impact on you recently and wanted to make up for it.