Hello everyone The 34th week is coming to an end, I noticed that when …

Hello everyone The 34th week is coming to an end, I noticed that when lying on my back, the belly button sinks inward It was all stretched out before, and now it's sunk in I'm in the hospital, false contractions, no disclosures My back hurts, the stomach pulls, at the 3rd ultrasound they said the baby is lying low very Can the belly button sink because of this? Is it normal anyway ???