We have often heard that more babies are born during the full moon. This is actually not true. The research of Dr Eugen Jonas indicates there is a natal lunar phase connection to 85% of conceptions each month and the mothers natal lunar moon phase also effects the birth day of the baby.
How long does a moon phase last? Answer: 4 days total.
Knowing there is four days to a moon phase, I would calculate by including the two days before and two days after your natal moon phase day for the baby to be born to qualify as a moon phase baby.
Looking at statistics of a few people I know:
Evidence Case One. My son was born two days before my moon phase day. Yes, he is a moon phase birth.
Evidence Case Two. July 22, 2013, Prince George was born to Catherine Middleton on her exact moon phase day. Perfect alignment. Both have a waxing moon at 99%. May 2, 2015, Princess Charlotte was born 1 day before exact moon phase alignment of her mother. The newly expected third baby, according to Catherine's natal moon phase, should be a girl born April 29, 2018 or within 2 days before or 2 days after. Update: New baby is a boy born April 23, 2018. This baby is not a moon phase baby. We can guesstimate that Louis would have been conceived and strongly in communication and rhythm with his mothers natural hormone cycle.
Evidence Case Three. My older brother was born 2 days after his mother's phase day. I was 7 days after. My younger brother was 4 days before. Interesting approximates, but only the older brother truly qualifies for same moon phase as the mother.
Evidence Case Four. CBB had her first daughter born 8 days after, and her second daughter born 6 days after her moon phase day. Interesting approximates of two daughters to each other but not close to the mother's moon phase. Maybe I have the mother's birth information wrong.
This has been a small study, but it does reveal significant information. The mother's moon phase does influence the child. A possible factor for not being in sync might be environmental stressors of the home, work, relationships, and the world. Try this quick stress test to see your stress level.
Be Healthy. Stay Healthy. Massage.
P.S. Go to the blog titled secondary infertility to find directions to your moon phase information. If you need further direction send me a message. I might be able to help.