Squished placenta or umbilical cord?

I’m 40 weeks today! 🎉 No sign of baby yet but I have a question..sorry if it’s dumb but I’m a FTM so idk what to expect.

I bent over (towards the right side which is where my Placenta is) to put my tennis shoes on and I felt a bubbly feeling and something protrude out of my side for a second. It wasn’t painful and I pushed it back thinking maybe baby stretched out it’s leg in protest to my bending over but after this happened my right side was a tad tender feeling. Could there be any possibly of an issue? Like, could I have somehow smashed or clamped the placenta or umbilical cord in a dangerous way for baby? Or am i just over stressing because it’s my due date and I’m impatient for baby to arrive? I don’t know if I should contact the doctor or what signs I should keep an eye out for. Any suggestions are very appreciated.

xx