Hyundai Genesis. Hyundai Genesis. Striking the right balance of design, luxury, and performance, the Genesis represents a lot of car for the money. Under the hood is a 311-hp V-6 with rear-wheel drive; all-wheel drive is optional. If you want more performance, a 420-hp V-8 with rear-drive is available; an eight-speed automatic is standard on all.
Your sonographer will use this information to try to work out if your twins are identical. Your first scan is likely to be your dating scan, between 10 weeks and 13 weeks plus six days (NCCWCH 2011, NICE 2011). This may also be the first time you find out you're expecting twins at all, so there'll be a lot to take in.
That being said, it IS possible to miss a twin for awhile. There was a girl here or on r/cautiousbb who found a twin at 21 weeks during her anatomy scan. Rare, but could happen. Bring your concerns up to your doctor but truthfully, I feel if they haven't seen 2 babies by the time your second trimester starts, you're probably just having one.