My son measured at 30 w 4 d yesterday during his ultrasound. He is head down and in the birthing…

My son measured at 30 w 4 d yesterday during his ultrasound. He is head down and in the birthing position and I’ve lost my mucus plug and my cervix is starting to shorten he’s almost 4 pounds . I’m def excited but also nervous because I have been having high levels of stress with some things going on and I don’t want to go into labor too early.