how heavy or how light your periods are really depends on the Uterine Lining thickness, and the thickness depends a lot on the amount of estrogen a woman can produce.
Its quite common than the normal "fertile" estrogen amount is disrupted after a miscarriage.
-Many produce too little estrogen and have a very thin lining thus a light period; usual signs are lack of EWCM or none at all, shorter cycles, vaginal dryness during ovulation.
-Many others produce too much estrogen/have longer cycles and have a very thick lining thus heavy periods with clots; usual sign include more than usual EWCM at strange days or after ovulation, longer cycles, breakouts, ovulation spotting plus occasional random mid cycle spotting.
Too thick and too thin is not suitable for implantation.
-and the very very very few lucky ones produce just enough estrogen and the ideal uterine thickness to sustain implantation.
it does take a few cycles for the body to readjust these levels, so everyone is different.
