UTI or other infections?

So my fwb and I attempted to have anal sex, but it hurt me too much so we couldn't go really far. I was barely able to let his tip in. So we let it go, but using the same condom, he sort of went into my vagina (not fully, if anything just the tip but I don't even think the whole tip went in). After this happened, I read that going from anal to vaginal can lead to infections. However, we didn't totally do anal or vaginal, so do I have to worry about having UTI or any other infections? I feel like because I read that, I'm making up symptoms in my head, but idk. Getting tested would be hard for me cause I'd have to do it without my parents knowing