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you may go for beta hcg
estimation and consult gynecologist. an internal examination will be helpful. usg exam will also be helpful.consult gynecologist and follow advice and take treatment as required.
do not worry it may be a normal pregnancy
even it is otherwise you will receive proper treatment
by 2 wks missing the period preg test should have been positive
if it is missed period it will be managed accordingly
if you are not having any other problem except excess discharge you may just wait .
a consultation with gynecologist will be reassuring for you