PLE-4064

A 25-year-old G1P1 female, who previously had regular menses, consulted due to amenorrhea for 6 months. Physical examination is normal with no signs of virilization. The pregnancy test is negative. You started her on MPA for one week, after which she had no withdrawal bleeding. You decided to give CEE for 21 days followed by MPA for 7 days. After this, she had withdrawal bleeding. What will you determine?