Should I just wait to make sure ....

Good evening Ladies, I’m currently 15 weeks and 2 days pregnant. I went Wednesday to find out my gender and I was told it was a boy (another boy I have 2) which was kinda sucky but I got over it. I did a gender reveal box and found out then. I’m going to show you ladies 2 pictures. The top one will be mines and the bottom will be my cousins who is also pregnant and is expecting a little girl. I don’t know if it’s me being in denial but this pictures both look similar and they had mistaken her baby for a boy lol. Please let me know what you guys think

PS: She is currently 20-21 weeks and I’m as many weeks as I listed above. My baby’s heart rate is at 155 and my cousins baby is 130-145. At this point I’m just extremely confused and I go next month for my anatomy scan at my doctors so I will finally know if it’s actually a boy, or if the gender was wrong.