Any advice will be appreciated

So im currently 5-6 weeks pregnant and ive had spotting here and there which i know is normal and can be brown pink or red in colour but today ive noticed i have filled a full pad which is a first for me but its no where near as heavy and NOT as a normal period thats for sure. Is it summit to worry about or can filling a pad once be normal? Im not in any pain or discomfort or anything like that