MENSTRUATION AFTER MISCARRIAGE

Hi, goodmorning moms! I visited my OB two weeks ago at sinabi sakin na babalik yung regular period ko after 1 month. I had a miscarriage last Feb 21 and was completed via D&C (raspa) by Feb 22. Ngayon, almost 3 weeks na pero wala pa ko nafeel na magmens nko. Is it normal? Thanks!