TTC after implanon removal !

hi everyone, starting TTC last month for #2, got the implanon removed after 2 and a half years on the 9th. period came on the 11th, heavy, for 4/5 days. So I assumed it would be another full month before I got my period again, but had spotting on the 31st, slightly heavier the next day but nothing like my regular period and it's been very light since. does anyone know if this is normal ?? is it just maybe my body regulating itself again ? My periods were always regular before I went on contraception.