Thanks for the query.
Your symptoms suggest that you might be suffering from PMDD.
Premenstrual dysphoric disorder
(PMDD) is a severe form of premenstrual syndrome
affecting 5% of women. Lifestyle changes such as regular exercise and a well balanced diet may reduce some of the effects of PMDD.
You are not likely to be pregnant. Just that you will be getting your periods shortly.
can also be one of the side effect of birth control pill.
Please visit your doctor if symptoms worsen.