After ovulation study ,my Dr. prescribed me duphaston for 10 days, tablet valets for 10 days and tablet delisprin for 30 days but today is second day (5dpo) that I am taking this medicines, but in morning I felt nausea, headache and in late afternoon I started cramping n in the night I felt more cramping .it's bearable but m not comfortable with it and felt like pinching and or like period cramps so my question is .is it side effect of this medicines or something else .or its general? Feeling bit scared and uncomfortable.