What does mean

Virginia

Hello this is un update i have been trsting since 10dpo and today is 16dpo i an 4days late and i keep getting faint line. On cheap tests from Amazon and dollar store. So i need some advice am i pregnant or not please me know. Bottem picture is 10-13dpo. Top is today 16dpo. It bc i need to buy i clear blue or is it chemical pregnancy. With my daughter didnt get positive pee it had to be blood to show so this new for me. Thanks again.