So does she make her own mix? They neither one of the examples have blue cohosh... Which in capsule for can be an overdose,see Paul Bergner's article in Medical Herbalism on blue cohosh.a tea or tincture for a very limited time ( a few days, not weeks)is probsbly safe.
Also over the years I have had 2 very disturbing siezure situations with moms who took freshly made blends both containing lobelia, the first baby i didnt know which herb or if it was the herbs but when it happened more recently to an herbalist mom's baby. And i said i am concerned about the combo she was taking. she stopped the blend and the baby stopped having eyerolling seizure activity... Well she was having hard after pains and took lobelia seperately and her baby started having the eye rolling again and had an apnea event, when we met at the hospital and I inquired about herbs she told me about the lobelia... So now I associate lobelia with potential dangerous overdose and seizure symptoms for babies of moms who take it. lobelia in general is only tolerated in very small doses 5-15 drops of tincture at a time for an adult and they will usually be induced to vomiting with exposure to an over dose but a baby's exposure is what ever passes thru mom's blood stream into baby via placenta or milk. The dose could be overy high and vomiting wont get rid of it.. Btw when the mom stopped taking the lobelia he didnt have another problem and they found nothing in the hospital he is over 5 now and fine and the other years ago he is almost 30 and has been fine since so... Transient but serious effects. And something I will NEVER recommend to a mom to take while pregnant.
With that being said in the same way that we recommend vitamins, I would recommend certain nourishing plants or even a taylored formula for a particular mom, specifically moms who never use any family planning/birth control and have several kids already.They often need a boost/tonic. Lots of times young first time moms need healthier eating and could probably be supported by a tonic but are not showing the same levels of wear and tear. so the majority of herbs or foods I would recommend a mom to specifically eat are going to be nourishers and not things that cause uterine contractions, and we are not using them to make a shorter birth or a painless birth. So if you give everyone the same thing how do you know it does anything?
My for instance I guess would be myself, I cannot drink red raspberry leaf tea, it is too astringent for me, and when I have drank it post partum it csused my bleeding to increase, from pale almost done back to bright red... I have had a few clients with similar reactions so I tend to recommend 1 thing at a time and mix a blend for an individual once we know they are good with all the parts.
Another example, one mom always gets UTI as early almost like a sign of pregnancy, for her, happened nearly every pregnancy, well we know that cranberry or blueberry work best as a preventives, so she takes it all the time at about the time she could get pregnant, and if she knows she is pregnant she may start drinking blueberry smoothies everyday. Works for her...but I wouldnt tell every mom to do this all the time KWIM?