Hi, Thanks for the query. Cortal containing paracetamol and ibuprofen will not act as abortifacient usually. Urine pregnancy test kit may give false negative result when tested in very early pregnancy. It can also give false positive results depending upon how test is performed. So, once go for blood test for pregnancy. If the test comes negative, the possibility of pregnancy is less. If the test comes positive, consult gynecologist once and go for ultrasound. Ultrasound helps in confirming the miscarriage and in ruling out any retained products. Then according to the reports, you can plan further management. Next time better to go for urine pregnancy test one week after missed period to get accurate result. Take care.