  In Vilenkin's tunneling wavefunction proposal our expanding universe is born
via a tunneling through a barrier from nothing at the zero scale factor. We
explore the viability of this proposal for the spatially closed FLRW model with
a positive cosmological constant including quantum gravity modifications in the
Planck regime. Our setting is the effective spacetime description of loop
quantum cosmology (LQC) which is known to replace the big bang singularity with
a bounce due to the holonomy modifications. Due to the bounce, the barrier
potential of the Wheeler-DeWitt theory is replaced by a step like potential
which makes the tunneling proposal incompatible. But for a complete picture of
singularity resolution, inverse scale factor modifications from quantum
geometry must be included which play an important role at very small scale
factors in the spatially closed models. We show that with inclusion of inverse
scale factor modifications the resulting potential is again a barrier
potential. The universe at the vanishing scale factor is dynamically
non-singular and in an Einstein static like phase. We show that quantum
geometric effects in LQC provide a non-singular completion of Vilenkin's
tunneling proposal. We also find that quantum geometric effects result in a
possibility of a tunneling to a quantum cyclic universe albeit for a very large
value of cosmological constant determined by the quantum geometry.
