Soo im only 4 weeks & 3days thats what this is telling me at least but when i do the first response how far along am i it says 4 weeks & glow says 4weeks & 1 day beyond confused help?

But everybody keeps saying im going to have a girl and earlier something told me as well ! I really wanna boy but i plan to love my child no matter what gender!!!

But can somebody help me out?

I mainly believe i am 4 weeks bc my last period was may 15 & lasted 5 days i also did it on the flo app and it says 4 weeks & 3days First Response how far along am i says my due date is February 16,2020 help?! Please i dont see a OB til july