Steel ball spiral barbell, 16 ga
Shown: 12mm twister with 5mm balls.
Quotes from Piercing FAQ
GENITAL PIERCINGS AND PREGNANCY
Piercings which are in danger of tearing when the vaginal opening widens should be removed. A Fourchette piercing will probably not survive the birthing process. Horizontal hood and Triangle piercings may stretch uncomfortably or tear with the jewelry in place.
In the interest of a safe birthing, it is of the author's opinion that jewelry should be removed in case of a complicated birth. The jewelry could get in the way of emergency procedures should the need arise. The doctor or midwife may feel uncomfortable working with the jewelry in place and you should discuss the matter prior to delivery. The jewelry can be easily replaced after birthing is complete.
Rings and Barbells
Studs & Screws
Retainers & Expanders