Obvious symbolism everyone here seems to be missing

Rating: 4/10 (5 January 2019)

This was an ok suspense movie. Not scary at all. The entire movie was a metaphor for the symbolic journey this woman was going through during her pregnancy. Not a horror movie, more of a drama exploring female emotions that all these reviews here seem to have missed.
The movie is a self examination of self doubt and parental adequacy. The entire journey is symbolic of the woman's fears about parenthood and being able to keep her child safe in an unsafe world.
She was contemplating putting her unborn child up for adoption right before all of the crazy journey began and the journey ended when she internally decided to put the hold up for adoption and gave him/her up to the doctor.
I was expecting a horror movie but this was not scary at all. Made me think a bit but I felt like I was back in high school English class with the themes and overtones.
Not terrible but I don't understand what all the hype was about. Also it was not believable that Sandra Bullock was pregnant knowing she is 50+ years old. Meh.