Does anyone know where my fundus should be at this stage? And is it important that it be centered, or is it OK to shift a little from side to side? (Mine, obviously, does.) I thought I remembered reading somewhere that you should be about 1 1/2 inches below the navel at 17 weeks, but I feel like I'm there now! Of course, this is my inexperienced self feeling this, not my midwife - I see her this afternoon, so we'll see what she says. Just curious if you think I should be bracing myself for twins! (AAACCKKKK!!!)