In 2019, an All India Rank of 1807 secured a seat in VMMC after Round 1. So with an All India Rank of 1712, you have a fair chance at VMMC for Obstetrics and Gynaecology. . Having said that, this is 2019 data and cut offs change every year depending on various factors such as no.of Candidates appearing for the exam, no.of Candidates qualified, difficulty of the exam, and no.of seats available for each specialisation. Please try our College predictor to check the possibility of other specialisations with you rank across India:  https://medicine.careers360.com/neet-pg-all-india-college-predictor