it says in gurbani the baby is doing simran for 10 months, if thats the case then wasnt the soul their from the first day?
i would say that do as much gurbani as she can, do amritvela 5 banian and do evening bani's as well and listen to kirtan whilst doing house work. when you baby is born you will notice how much kirpa he/she has .
hopethis helped.