Chest pain??

so I’m 21 weeks pregnant and experienced really sharp chest pains last night..it came on out of nowhere and it really freaked me out. It was on the left side but kind of high up above my boob? I tried stretching and stuff which kind of helped must mostly didn’t go away til I went to sleep. I read online this can happen from everything stretching and your boobs getting bigger but just wondering if anyone else had this happen ever? TIA.