Possibly a new year bfp

i had a mc in June last year .. or chemical unsure of terms to use ? Anyway I am due next Friday and have been using the Ovia app to track dates etc and it tells you to test 5 days before which is obviously early but I have felt to poorly and my Xmas party is tomorrow with free bar 😂 So I tested today like a crazy woman ! And I got a positive .. but faint ! What is tbe next step to keep testing to get even darkness in the lines ????