Aw mama, leg cramps during pregnancy are SO real and sobrang frustrating, lalo na when you're trying to sleep! A few of us pregnant mums swear na tumutulong ang stretching before bed, staying hydrated (drink lots of water talaga), and making sure you're getting enough magnesium, some of my friends took magnesium supplements and nakita nila ang difference. Try din to avoid pointing your toes when you stretch, and if may cramp, flex your foot towards your shin instead para ma-ease ang tension. But honestly, since you're already 31 weeks, best to mention this sa OB mo next checkup para sure, kasi sometimes severe cramps need a bit more guidance from the doctor. Fingers crossed na makahanap ka ng relief soon, 7 weeks to go na!