Partner's angry mood swing

Hi all
Since the weekend my partner has become suddenly angry towards me.
I think in some part it could be womens pms coming.
I also think I maybe to blame in maybe what I say.
She might talk to me about something but then snap if she dont like
What I have said, might be a sarcastic comment but sometimes its not. Most times she would not respond how she has been. What annoys me is sometimes the hypocritical reason, accusing me of what she is doing?(like trying to start an arguement).
She has been a bit anti-men the last week in what she says and I feel maybe her baggage from previous relationships might are being taken out on me perhaps.

Whats the best way to react? I have tried staying calm and not get heated up/provoked like I did day before. I have also jus given us both space and not paying her too much attention.