There are various studies with supporting data on what not to do during pregnancy, with many actions and/or situations that can negatively impact the growing human during pregnancy.
However, I am looking for studies on what to do, for achieving more optimal and positive benefits, on a developing human during pregnancy.
To narrow down this question better for this site's format:
I'm interested to know; what are the effects on a developing human during pregnancy, when the mother performs a routine and daily meditation practice, in addition to a daily and routine aerobic and anaerobic physical exercise practice (say most days of pregnancy, like weekdays).
To add context, this can be contrasted to the differences in pregnancy styles, as asked in this question. Here the mother's priority is stressful work, on most days of pregnancy.
If there are other items that are notable for positive outcomes, please do mention them.
*Note: This is non-religious meditation, with focus on mindfulness, self-awareness, etc.