It sounds like a false positive. Did they do any confirmatory testing?
I'm not sure what this means:
Tp15m = detected, others not
I can't find this test. It's not an STI test.
Your IgM indeterminate - ignore it if that's a herpes test. It's a highly unreliable test, and shouldn't have been done. If you have concerns about herpes at 12 weeks, get another IgG test, but otherwise, you can skip it.