Talk to Gynecologist on Periods Disorder

assalamoalaikm. i need to discuss something from respected gynacologists... about period disorder, periods bht disirder huy vy hyn r ak doctr sy chkup krwaa k med li n dctr said that thek 21 days k bad apko periods aa jayn gy r khul k hu gy but abi 3 days hi huy again spoting start,, r med ka puchna tha k ye med kis lea use hoti hy... "Pʀɪᴍᴏʟᴜᴛ ɴ" ye med di gae ... kindly bta dijye is med ka k ye kis lea use hoti hyyy .. w8 for your kind response JazakAllah kher