Actually most of my mummies friends and I experienced it from time to time too. I take short walks to relieve it and it helps! But if it gets too painful, perhaps good to let your Gynae know about it.
yeap every now and then if i walk too much & i sit wrongly. just need to rest, lay down and let it fade on its own bc not too severe. if it prolongs and worsens, check with your gynae ok! 🎈