It doesnt matter and just move on. Only way to figure it out is with a paternity test which could put you in a bad position unless you do it secretly without your boyfriend knowing. Do the DNA on one of the twins and get hair from his brush. Sent from my iPhone Dr. Niko Lailas, Director, Center for Robotic and Minimally Invasive Surgery, Reston Hospital Center urologygroupvirginia.com<http://urologygroupvirginia.com/> Like us on Facebook<https://www.facebook.com/TheUrologyGroup> Follow @LMGdocs on Twitter<https://twitter.com/docsLMG> Follow us on Google+<https://plus.google.com/+TheUrologyGroupLmg/posts> Follow us on YouTube<https://www.youtube.com/channel/UCBb5PPv5PVGU6y9LeBWImlQ?view_as=public> Join us on Linked In<http://www.linkedin.com/pub/theurologygroup-lmg/78/3/ba3/>