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Your mentioned symptoms are symptoms of early pregnancy
but that doesnt indicate you are pregnant.
You need to do a Urine pregnancy test around or after the time of your next expected menses during which the test is likely to be positive if you are pregnant,
You can also do blood beta HCG
, which will show pregnancy with in a week of implantation
of embryo which normally causes your symptoms.
If found positive consult a Gync for further advice about proceeding your pregnancy