Bleeding and 5weeks 3days

Yesterday it started with a very light brown spotting but last night it got pinkish brown with small clots. I dont feel nauseous or cramps or anything like that. I have had two healthy pregnancy and never spotted or bleed during the first trimester. I didnt over work myself yesterday or lift anything heavy or anything like that. I have looked it up and it says this can be normal and the baby is ok. I was just wondering if anyone else experienced this and what did your doctor say about it. Im going to call the doctor monday if they are open. I know there isnt anything that can be done if i am miscarrying so im trying to stay calm about it.