10 weeks due 01/13 CRAMPIN

I have experienced off an on cramping throughout my pregnancy so far, which is what I’m told normal as everything inside is growing/stretching but i’m laying down and its not painful at all just kinda light pressure, normal? If so what is it, just stretching & growing? I almost feels like light period cramps & my lower back aches. I’m just so nervous something is going to go wrong as I don’t have my first apt for another THREE WEEKS 😫😭💔