Pro Ven Probiotics Pregnancy Probiotic may help maintain intestinal & immune health during pregnancy. It is now recognised that healthy bacteria are just as important to the new born baby as to adults & that the establishment of a robust population of friendly microflora as soon after birth as possible is critical in driving the development of a healthy immune & intestinal function. However, it is now acknowledged that modern living conditions, particularly for the newborn baby, may inhibit or slow down the natural development of the normal flora, & that this process needs a ‘boost ‘ to help intestinal & immune health.