help !!!

ok so i’ve been on & off w this person for about 10 months now . he is my everything . like he’s literally all i have , i’ve been through so much & he’s the only thing keeping me happy . i honestly feel like i can’t live without him . 🤦🏾‍♀️ & it’s like we can’t get over each other . every time we get into a relationship w someone else we end up breaking up w them & go right back to each other . i don’t think he uses me for sex bc last month was the first time we ever did it & we’ve been talking since january . after we had sex i had a pregnancy scare & he was supportive & then my period came & then he kinda got distant . idk what to do cause i really love him , but i’m tired of feeling like i’m being used & feeling like he doesn’t fwm how i fwh . i’ve tried to get over him , but he comes right back & we start talking again . & all my friends call me stupid , but they’ve never been in my situation before so i’m not listening to them . i really need someone who can relate or give good advice . so should i stay or should i leave ?