My lmp was from June 24th to the 28th. I went in for my fist ultrasound and they estimated me at 10 weeks, 4 days but i later received an email that said "From the body of the report states your 10 weeks, 4 days but the impression reposts 9 weeks, 4 days.. Could anyone help me with this? On this app going by my lmp it says im 13 weeks