Flow measurement is the quantification of bulk fluid movement. Flow can be measured in a variety of ways. Positive-displacement flow meters accumulate a fixed volume of fluid and then count the number of times the volume is filled to measure flow.
The following herbs have been rated Likely Safe or Possibly Safe for use during pregnancy:4. 1  Red Raspberry Leaf â Rich in iron, this herb has helped tone the uterus, increase milk production, decrease nausea, and ease labor pains. 2  Peppermint Leaf â Helpful in relieving nausea/morning sickness and flatulence.
Data from a large Norwegian twin population show higher use of nausea medication in pregnancy among female monozygotic twins compared to female dizygotic twins [14]. In addition, higher levels of nausea have been found in women who had mothers who experienced trouble with nausea in their pregnancy [15].