First case:

It is kind of genital tract infection known as PID (pelvic inflammatory disease).
The risk of PID following IUDs insertion increases if she get STIs from her partner or partners. History should focus on that.

By the way, it took her 5 months to realise that she was pregnant? ? Does it happen in real life?

Second case:
A case of PUD (peptic ulcer disease)

Interesting cases this time: PID and PUD