Sandy66 - CA125 rising after treatment in 2024. Could this be a recurrence?

Hi . I was diagnosed with primary peritoneal cancer in January 2024. I had seven cycles of chemo and a big surgery in between . I’m also BRCA2 . I got to NED in September of that year .my CA125 was 5.  I’ve been taking Olaparib for the last two years……Fast forward a few months .

since April of this year , my CA125 has been rising , it’s currently 245 and I’m having a few issues with my tummy , I had a CT last week , and I see my oncologist on the 30th . How likely is this a recurrence x