Hi thanks for the query.
You may be having nausea
either due to high progesterone
levels in premenstrual period or due to iron in placebo pills of your pack or a combination of both these factors may be causing too much nausea.This is not normal to skip the period although, the period may be delayed.These pills can not change the results of pregnancy
test. You may be feeling sick because of premenstrual period.
Hope this information is helpful and informative to you.
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