how to tell him!?

Geeky • 💜bae💜
How do I tell my boyfriend I want to come off my birth control?
I have been with my man for 3 and a half years now and we are going strong. I am 18 almost 19 and he is 20 almost 21. 
I don't want to come off my pill because I want a baby... I want to come off my pill because it's fucking my life up!!!!!
I have periods that last 3 weeks! Then I have a break of 3 days! Then I'm back in my period again for 3 weeks!!! I can't handle this anymore. It makes me feel unwell and generally crap. I feel like my relationship is suffering because I can't satisfy my boyfriend OR MYSELF!!! 
I want to come off the pill altogether but don't want to get pregnant. I'm about to start uni! 
I know I can just use condoms but I feel this isn't always the best way! 
WHAT DO I DO!!!!???!!!