Oh and about the girl that gave Nihaal the lottery ticket. Her and Nihaal will fall in love. Veera will get jealous by seeing the closeness between the two of them and realise she has feelings for Nihaal, but it would have been too late, and he leaves her for the new girl, and a new story starts, with Veera wanting to divorce Nihaal for all his money.
And also, i dont think Heer will get pregnant, because its not in Ekta's style for the main couple to have a child so early. First they will have many, many, many, many problems, and maybe have a baby in a year or two lol.