HELP!!!

I have never been a light flow girl. when i bleed, i bleed with passion. like if i don’t get a transfusion i might pass. but, this month, my hubby and i started ttc. but my period came. except it was EXTREMELY light. about a dime sized amount of blood on a regular tampon. is it too late for us this month, or should i test? i heard light bleeding was normal during pregnancy, but i’m not sure.