I am going to send a brasileño friend a message to see if he has any recommendations. He is a great guy! He dropped med school a couple years from completion to study and devote himself full time to acupuncture.
Though I am sorry I cannot offer you any personal experience about either acupuncture or about pregnancy!
I realize this post is old and you've probably already had your baby, but if anyone else is interested, I am an acupuncturist from NYC practicing here. Quite a few of my patients in my previous practice were women with pregnancy-related issues, and I received a lot of referrals from a very well-known OBGYN/midwifery practice affiliated with the Birthing Center at St. Luke's Roosevelt hospital. I also work with male and female fertility, among many, many other issues both "female"-related and otherwise.