Aw mama, yan talaga ang pinaka-frustrating part, parang ang body mo na gumagawa ng signs pero ang labor ay ayaw pang dumating! A few of us moms have been through this na rin, at honestly, sometimes the mucus plug comes and goes for days pa before actual labor kicks in, so don't lose hope yet. The yoga is probably helping you stay calm at flexible, which is good for delivery, but I'd really suggest checking in with your OB just to make sure baby and you are doing okay at kung may need for induction na, better to hear it from your doc than worry, right? In the meantime, try walking, some spicy food, or just rest up kasi you'll need the energy once labor actually starts! Keep us posted, mama, you're so close na!