Light period affect chances of conceiving??

Ka
Does anyone know if having light periods affects your chances of conceiving? I just wonder if because my periods are light it means my uterine lining isn't "thick" enough for implantation. I had my Mirena IUD removed two months ago and since then my periods have been very light (e.g., 1 tampon the first day and pantyliner for the next 3 days). FYI I had no periods with my IUD. Anyone else experience this or had luck TTC with a light flow?? Thanks!