MRI tomorrow, fingers crossed surgery can wait until after delivery!

At my 20 week U/S they discovered a 9cm teratoma tumor or growth of some sort on what they think is one of my ovaries... 2nd ultrasound 2 weeks afterwards showed that though the tumor hasn't grown any, the shadow INSIDE of the tumor has grown a concerning amount that now I'm here scheduled for an MRI tomorrow morning (now 23w 3d) to determine what the shadow is and whether or not I need surgery before baby gets done baking.

Prayers and fingers crossed it can all wait and the tumor won't cause me any pain between now and then!