Spotting then Bleeding after sex? Not normal po ba?

Good Pm.. not normal po diba? na after sex nagspotting then after 8 hrs nagbleed naman after ko magsleep. btw i'm on my 6th weeks na taking duphaston 2x a day. and other vitamins kasi were expecting TWINS po. Please advise close kasi ung clinic ng OB ko and di ko siya makontak. PS: nakunan na po ako last June 2021 and 2nd pregnancy ko na po. Salamat ng marami! #1stimemom #advicepls #pregnancy