Could Lower Abdominal Pain And Pressure After Taking Duphaston For A 15-day Missed Period Indicate A Side Effect?

I have missed my period this month and it s been 15 days, didn t test for pregnancy as the last IC is the 27th of April, and LMP is the 7th of May. consulted a doctor and she suggested duphaston 10 mg thrice a day. after taking medication, i am feeling pain in lower abdomen along with pressure.