Stretching pain?? 11w 3d

Hi everyone!

2nd time mum (im from August 2015 group)

Just seeing what people think or if they have had similar.. i still worry about everything..

So I was sitting on the lounge and twisted to grab something (twisting to my left) and it i got this massive twinge on my left side under my rib) it was pretty uncomfortable.. i couldnt stand up straight only hunched right over cause it felt like something had gone super tight. It look about 5 minutes and I could stand straight and move properly.. no issues since.. do you think I should be worried?

Have scan booked on Wednesday..have seen baby twice before and looked great!

Not sure if was a ligament caught up and over stretched... juat weird because i could not stretch myself back out for a bit.. but fine now..