Funny story: My husband has got a twin brother. DH and I were TTC from March 2014. The girlfriend of my DH's twin got pregnant on their first try last month. As soon as my BFP was confirmed by beta I scheduled an appointment with a new OB/GYN (since my other OB/GYN did not have ultrasound equipment) for today at 17:00... We went to the clinic today at 17:00 and what do you know! There comes the twin brother with his GF. They did not know anything, and it is so weird we had appointments and bumped into each other at the same clinic at the same time!!!
So my DH will be a dad and an uncle almost at the same time! (BTW, the appointment went well.