me and my boyfriend have been dating for 10 months and he wants to have sex.. I'm 13 and he's 15.. I love him so much but I don't think I'm ready.. Plz help I need advice.

Update-I told him that I wasn't ready yet and he said that he felt the same way.. but I've promised myself that I'm not going to lose my virginity until I'm 16 or older.. I've already talked to my mom about it and she's going to get me on some birth control pills by then