Possible incorrect gender determination??

We had an early gender scan the other day. I posted the picture here and we had mixed answer. I showed my family and friends and there were mixed answers too. I had began to worry because I did so much research and some of the pictures made me second guess their determination. Today I took the video and pictures into my ob and she said that my growth is 5 days behind, putting me under the 14 week line and that the genitals look the same for my stage of growth. She said it's 50/50 that they were right but they won't scan me until over 19 weeks. Here is the side shot and potty shot from the scan . Any thoughts? I am gonna hold off on painting now but I don't want to keep thinking about it. Any thoughts!