That happy news would often lead to prolonged private and intimate moments, especially considering the couple in question. However, the situation didn't allow Khan and Liiza to stay still and enjoy that small miracle.
Khan had to stop his ship to let Ilman and Zalpa board it, and stillness was a risk for people in hiding. The presence of the Niqols' vessel was another glaring issue. Besides, as much as Zalpa had agreed to help Liiza, Khan didn't know on what terms.
Ilman and Zalpa's arrival was strange in general. Khan could understand how Zalpa had found Liiza but would have expected fleets of Niqols' ships to have surrounded him by then. That lack of immediate repercussions confused Khan, but only the two aliens had the answers to his doubts.