This is where late pregnancy fetal surveillance comes in handy. The non-stress test is one of the staples. Why Do an NST. This test can be done in the later stages of pregnancy. It is more frequently used in cases where the mother is going past her assigned due date to ensure fetal well-being.
Not sure what it's called, but we make the same knot that the baler knotter makes to tie balls together. Hold the 2 twines together, make a loop, and pass the ends through the loop, trim to about 1 inch. If you cut the ends too short (makes no difference in the knot) the twine will simply pull apart.
Attach it on the back of the CD by tying it to one of the warp spokes. Knot the other end to the needle. Push the needle up through the center hole to the front side. Weave over under, over under. When you get near the end of your yarn, attach another yarn. I taught the kids how to tie a square knot.