I third that. And I agree that it could happen anytime now. All the best to you!
i agree with stacey! just another fun aspect of being pregnant. but don't get too excited yet that happened to me about 6 weeks before my daughter was born but you won't have to wait more than 3 weeks being that you're already 39 weeks.
Good luck and hope you have a happy safe delivery and healthy baby!!
This will be from the baby moving its head on your pelvic floor muscles, kind of like an electtric shock sensation, just another fun thing to deal with as your pregnancy comes to an end :) its good though that means baby is getting ready for birth and is getting low :)