Need a little advice...

Sooo my boyfriend and I are extremely close, and we have sex ALOT! I currently have 2 children of my own, but we have none together. I have recently been going through lots of depression and anxiety(which I got help with) and he's been very supportive and the sex has stayed strong lol! But these past couple days I just haven't been quit into having sex, and I'm a very sexual person!!! Im just tired of sex and I don't think I want to do it anymore for a while 😕😳.I want to talk to him tonight and tell him how I'm feeling and also voice that I don't want to have sex anymore until I'm married. What do you all think about that? This will be weird for me! And I'm not sure how he will take it...