An intramural fibroid that's partially subserosal, away from the cervix and lower uterine segment, usually doesn't block a normal delivery. What matters most for your delivery plan is exactly where this fibroid sits in relation to your cervix and the baby's presenting part, not just its size.
Next Steps
Sitting on the floor is fine, and gentle prenatal exercises like walking and breathing work are generally safe too, unless you've had bleeding or pain from the fibroid. Ask your obstetrician at your next scan to confirm the fibroid's exact position and whether it's growing.
Health Tips
Get checked promptly if you notice cramping, pain over the fibroid, or any bleeding, since a fibroid can occasionally cause discomfort as the uterus grows.