Cups and other groin protection. A very good idea. A football type cup will protect against a blow, but is deficient because in a fencing stance the cup hangs down and is not in contact with the lead leg. What can happen is that a broken blade can tear through the britches and slide along the leg under the cup. Don't ask to see the scar, but I know of what I speak.
Many women prefer using a fairly solid breast protector.
These are available as inserts into special pockets in fencing jackets, and as special sports bras. It not just your right but your responsibility to insist on safe equipment. Fencers should not permit their opponent to use a weapon that cannot be protected against, and should not fence against an opponent with inadequate protection from their weapons.