Harmony test

Rosy • I`m 27, I have 2 handsome boys, and beautiful wild little girl. ❤️❤️💜👼
I got my blood drawn for the harmony test and they told me that I get to find out the gender, I'm super excited but I've read that sometimes it will tell you it's a boy and it's really a girl? Have any of you moms had the test done and gotten the incorrect gender?