6 weeks 3 days spotting help please!

hi ladies so I am 6 weeks 3 days preggo and me and the Mr had sex yesterday morning and woke up this morning and wiped and it was discoloured slightly so I inserted my finger i know TMI and it was a brownish pink discharge on it not alot but all day on and off only when I wipe its pink should I be worried or is it normal! im having some low pelic cranos but nothing out of the ordinary or painful just dull achy mild cramps I had a miscarriage febuary so I am petrified!! please could you ladies help me!