tell that other man and your guy that you don't know who the baby is. and get a DNA test asap when the baby gets there so one could raise there child.
Sounds like that was your period based on your ultrasound and due date. Your last period would be October 26th. And your got pregnant from the 5th to 13th of november. So it would definitely be the 2nd guys and ultrasound dates are very accurate. .
To be sure you would need a paternity test
Ultrasounds are completely accurate!
It would be the second guy and the us are accurate c it was your ex you would've been due in early July
Ultrasounds are pretty accurate
Dating ultrasounds are pretty accurate. It's most likely the latter man's child.