Help very faint line on pregnancy test

I think I’m going crazy 😂 I’m 5 days late for my period so I did a pregnancy test and it appeared negative and I was in a rush so chucked it on the side and went out.. I’ve come back 2 hours later and went to throw it in the bin and I caught a glimpse of a vey very faint line. My boyfriend says he can’t see anything.. is there anything else this line could be? 🙈