Hello everyone, maybe someone had Since last evening I have been pulli…

Hello everyone, maybe someone had Since last evening I have been pulling my stomach out into my lower back...I couldn't sleep all night, it pulls and lets go, I can't find a comfortable position, in any case it aches, then lets go, this morning it started to feel nauseous, I can't look at anything but water... What could be the reason for this? Is it dangerous for the baby?