Pompey progressed 4-3 on spot-kicks after a 2-2 draw at Westleigh Park on Friday evening.
Macey Walters put the development team into a surprise lead, with Nicole Barrett levelling shortly after the restart.
Ella Wild put Pompey ahead late on, but Chelsea Burr levelled in stoppage time.
Pictures by Nathan Lipsham
1. Pompey Women (blue) v Pompey Women Development
Pompey Women (blue) v Pompey Women Development. Picture by Nathan Lipsham Photo: Nathan Lipsham
2. Pompey Women (blue) v Pompey Women Development
Pompey Women (blue) v Pompey Women Development. Picture by Nathan Lipsham Photo: Nathan Lipsham
3. Pompey Women (blue) v Pompey Women Development
Pompey Women (blue) v Pompey Women Development. Picture by Nathan Lipsham Photo: Nathan Lipsham
4. Pompey Women (blue) v Pompey Women Development
Pompey Women (blue) v Pompey Women Development. Picture by Nathan Lipsham Photo: Nathan Lipsham