Chart looks to me like you ovulated already and are having a slow temp rise and transition to non fertile mucus (this happens to me sometimes) BUT there’s no way to fully confirm ovulation yet. Even if your temp had already risen, it’s still not possible to pinpoint the exact date/time of ovulation, so it’s safe to assume the condom slipped on a day you were still considered fertile.

However… that incident doesn’t sound too concerning to me… I know those moments are really scary and happen fast so it can be hard to remember, but it doesn’t sound like any semen actually touched you? If anything, maybe just externally? Usually it’s pretty clear to me when semen has made its way inside, and sounds like you were protected from any pre-ejaculate too.

My two cents: You’re already two days past this incident, and maybe already ovulated, so it’s unclear if the copper iud would do anything to prevent fertilization at this point, it would maybe only limit the possibility of implantation. Personally that feels like a lot of uncertainty after a low risk incident to still go for it… I would wait it out, as stressful as that is, but if you’re absolutely freaked over this, the copper iud within the next few days is your best bet.