Plains All American Pipeline, L.P. (Plains) is engaged in the transportation, storage, terminalling and marketing of crude oil and refined products, as well as in the processing, transportation, fractionation, storage and marketing of natural gas liquids (NGL).
The first stage of labor is the longest and involves three phases: 1  Early Labor Phase âThe time of the onset of labor until the cervix is dilated to 3 cm. 2  Active Labor Phase â Continues from 3 cm. until the cervix is dilated to 7 cm.  Transition Phase â Continues from 7 cm. until the cervix is fully dilated to 10 cm.
By the end of this stage your cervix will be fully dilated, and open to about 10cm (3.9in) in diameter. During the second stage of labour, you will push your baby down your vagina (the birth canal) and meet him or her for the first time. You'll feel the pressure of your baby's head low down in your pelvis, and with each contraction, may have two or three strong urges to bear down.