A bit of background on this - I had this job interview in the fall of my senior year of college (on-campus interview). At the time, my expected graduation was spring 2019, and I had that on my resume. Got the job offer in December with a start date of summer 2019 - after graduation. However, some things happened (not gonna go into detail) senior spring, and I didn't finish my senior thesis, which was a requirement for my major to graduate. I did finish all my course requirements, though.
My college told me I could finish my thesis after graduation and get my degree once I did. At the time, I was heartbroken because I thought my company would rescind my offer. I decided to be honest, though, and told HR that I hadn't gotten my degree, but could get it in the fall. Surprisingly, they were okay with it. Just told me to send the degree once I got it. The people I was working directly with never knew this to my knowledge; only one person at HR.
However, I wasn't able to finish my thesis in time, so I didn't get my degree still. I was really worried I would get contacted by HR any day asking for my degree, but didn't hear anything from them.
Now it's late February, and I just got an email requesting my degree. I'm freaking out because I still don't have it, though I still could get it at any point if I just finish this thesis. I'm really worried about disappointing my team; I've actually been doing really well in this job for the past several months.
Really not sure how to move forward. I ignored the message today but I definitely have to respond Monday. Do I come clean and tell them I'm still working on getting my degree, but that I don't have to go to any more classes or anything? I do have my full transcript still. I really don't want to make too much up and dig myself a deeper hole. But I'm not in a spot financially where I could be fired and survive for more than a month.
Would appreciate any advice on this.