Lump in lower left abdomen? Tender when applying pressure and during intercourse. Sometimes feels rope-like, elongating to my pelvic bone. 23 year old

Needs to be checked. You have a palpable lump in lower left abdomen.From what you describe it can be anything.It may be in the abdominal wall or intra abdominal.You need to be evaluated with detailed history as to any other symptoms, history of any trauma etc and a physical exam, and if indicated on exam may need blood/urine test and imaging like ultrasound or cat scan.