How far along am i ?????

Selina • To all the lovely ladies out there never give up hope god has a great plan for us all and with time you will recieve keep faith in him and he will surely respond 💕💕
My last lmp was 1st nov according to glow ovulatii strtrd fron the 12th when to the doctor they sed i was 3 weeks without checking so why is glow saying im 4w5d any help would be great help me work it out i just dont know how too??😯😯😯