Thanks for the query.
will not occur due to intake of tablets.
Sometimes urine pregnancy test kits can give false positive results, so you first confirm the pregnancy by blood test
or by ultrasound
Primoult N belongs to category X drugs in pregnancy according to FDA. So there is possibility of fetal abnormality.
So if you want to continue the pregnancy take regular antenatal checkups and ultrasound examinations, so that any possible abnormality can be detected at the earliest and treatment can be taken accordingly.