My Wife Kept Taking Primolut-n For Five Days For Regularise

My wife kept taking primolut-n for five days for regularise the three months delayed period after the pregnancy test showing negative, but after 15 days not started period, so meet with the doctor and checked blood, that time result came positive. She did taken 10 tablets without knowing that she was pregnant and now when her pregnancy test came positive we are very worried if the pill is going to have an adverse effect on the baby or it can cause any deformities to the fetus