She was feeling tired for a few days

 Although Mrs Smith, Alicia and Zinu had already guessed about Dolly's pregnancy, they never thought that her health condition would be like that. Nobody could utter a single word. Everyone was so much shocked that, nobody could move from their place for a long time. Everyone was regretting not taking proper care of Dolly.

 Zinu was the saddest among the all. For the last three months, Dolly was with her most of the time, but she did not know her conditions. She as well as other members of the family also feeling guilty to engage Dolly in the investigation of the map. Because Dolly had to do hard work for the search for the map.

"I..... I should not take her with me for the investigation of the map. She was feeling tired for a few days. I should take her to the doctor earlier." Zinu could not keep her tears.