how to tell him I love him?

So me and my boyfriend have been dating since September 14th 2016 and then made it official on October 15th 2016 and we spend so much time together, I lost my virginity to him and he's the person I want to be with for the rest of my life. 
I really want to tell him I love him but I'm so scared because I've never said it to anyone before, is it weird for the girl to say it first? 
I have so many fears like it will make him weird towards me or he'll freak out and leave me or my biggest fear is he'll say it back but not mean it because he doesn't want to hurt my feeling. 
Any advice or stories of girls saying I love you first?