Miscarriage as Pregnancy Ground State Collapse: The Simultaneous Loss of Present and Future, Disenfranchised Grief, and the Physiology of Sudden Displacement

We apply the Displacement Framework to miscarriage grief, formalizing the pregnancy ground state S°_preg as a four-component system: the physiological present (an ongoing pregnancy as established bodily state), the projected future identity as parent of this specific child, the social-relational reorientation initiated by the pregnancy, and the somatic experience of pregnancy itself.

Miscarriage collapses all four components simultaneously in an abrupt event — a double loss of both present and future that is structurally distinctive from other grief. Nine formal propositions are derived covering: S°_preg as the four-component double-structure ground state, miscarriage as simultaneous collapse of present pregnancy and anticipated child, physiological displacement (progesterone/hCG/estrogen withdrawal) as embodied D(ξ) coinciding with psychological loss, continued physical pregnancy signs after loss as displacement signal persistence, disenfranchised grief as social invisibility compounding D(ξ) (through gestational minimization, consolation scripts substituting futures, privacy norms, and partner erasure), the specificity of each pregnancy loss making substitution by a future pregnancy a category error, premature return to conception as wrong attractor bypassing grief processing, rainbow baby anxiety as unprocessed Φ layered onto subsequent pregnancy, and memorial rituals as D(ξ) reduction through formal acknowledgment.

The framework explains why 'try again' advice is structurally inadequate: it substitutes a different future ground state for the specifically grieved one.