fraternal or identical?

Kelly ๐Ÿ‘ง๐Ÿผ๐Ÿ‘ผ๐Ÿผ๐Ÿ‘ถ๐Ÿผ๐Ÿ‘ถ๐Ÿผ โ€ข Married ๐Ÿ‘ฐ๐Ÿป (2008), 1 DD ๐Ÿ‘ง๐Ÿผ๐Ÿ’–(2012), 1 DS ๐Ÿ‘ผ๐Ÿผ๐Ÿ’™(became an angel 2/26/16), spontaneous B/G twins ๐Ÿ‘ถ๐Ÿผ๐Ÿ’™๐Ÿ‘ถ๐Ÿผ ๐Ÿ’–(2017)
I have yet to find out if my twins are sharing a placenta or not. I'm 13 weeks and my last scan was a week ago. First appointment at 8w3d ย a twin was "missed" and we only seen one. I'd like to know if not seeing one at an earlier scan could sway toward fraternal or identical? Does anyone think that far left corner could be the other sac? ๐Ÿ˜ฌ