Chemical pregnancy

So, I'm currently going through a chemical pregnancy. I had very faint bfp for a week or so, one day got darker, then they got less & less. They were hardly visible, but they were definitely there. However, my partner doesn't believe it's happening, he can't see the second lines. I tried to get a hcg blood test at the doctors, but they won't do it. I'm going through this on my own as I have no real proof; only the symptoms & the way I felt, along with the barely-there second lines. I'd convinced myself I was making it up, but no, it was real, & it is happening. I just feel like I'll always have that doubt now cause my partner never believed me, although he never believed me when I was pregnant before until Clear Blue digital confirmed! Is there any other way of getting proof, or will I have to just always know myself, & keep it locked away in my memories? 😔