Possibly. The curse may break, and a final book pregnancy is a credible theory.

The question of whether Daenerys Targaryen can get pregnant is one of the most debated topics in the A Song of Ice and Fire Game of Thrones

after the death of her son Rhaego and the vegetative state of Khal Drogo. The Riddle Mirri Maz Duur stated that Drogo would return "as he was" only when The sun rises in the west and sets in the east. The seas go dry and mountains blow in the wind like leaves. Her womb quickens again and she bears a living child. Interpretation

This condition terrified Daenerys, implying a geological impossibility. However, it could refer to the destruction of the Great Masters' pyramids in Meereen during the battle against the Sons of the Harpy (book events differ, but the siege of Meereen involves destruction). Alternatively, in the show, the destruction of the Wall—or the explosion of the Sept of Baelor—could be seen as "mountains" of stone crumbling.