Period upt +ve,

Assalam and hi mummies . Bantu saya . Anyone has experience this situation. Check upt 4/8 +ve, 14/8 check lagi +ve.. scan xnampak pape . Now period . Ikut counting , dah 6week kandungan.. adakah normal? Dan adakah size badan sebab scan ats tak nampak pape? Perlu ke scan tvs?