I’m so done !!

I’ve lost yet another baby and my body I can feel it giving up, I have endometriosis and my period is 5 days late . I took a test and it was negative.. seeing that truly broke me, and my boyfriend. He keeps telling me it’ll be okay it’s no big deal that it’s negative we’ll keep trying but every time I hear those words I want to break down. It’s like am I not good enough for this is my body to weak ?

What can I do or take to help get that positive (+)