Because you have a history of ruptured ovarian cyst, even in this situation when there are some new symptoms, I would suggest you to first check up with your gynecologist what exactly is going on. The pain from the ovaries can radiate towards cervix, but the “all over” type of pain you describe could potentially be a sign of pelvic infection or the cyst that formed again, this time more disrupting the bladder.
Have you been taking any painkillers? Many of them cause nausea, especially when your body is already in this much pain. But hormonal imbalance that is caused by changed functioning of the ovaries is also a possible reason.
As far as pregnancy is concerned, you definitely must see your ob-gyn, but if it has been two weeks since last unprotected sex, you can take a home pregnancy test, just to see what exactly is going on.