Please help !!

Rose • 💙 01•28•16 👼12•23•16 💙 01•25•18
I did a digital test it came to 2-3 which means 4 to 5 wks preg .. but when i do the edd due date its saying im 7weeks is something wrong with my baby please help this is my 1st preg is this normal or should i be worried