MANILA – Television host Mariel Rodriguez made a return appearance on the ongoing season of "Pinoy Big Brother" after being tapped by Kuya, the showrunner, to give the female housemates advice on how to take care of a pregnant woman.

This is in preparation for when the pregnant sister of Yong Muhajil, one of the male housemates, enters the iconic house --with the twist being that Yong has no idea that one of his siblings is now carrying a child.

Rodriguez, who is expecting a baby girl with husband Robin Padilla, told the housemates that they must ensure that a pregnant woman is free from stress, and that they will have to maintain a "happy environment."

"Every pregnancy is different. Kaya lang, lahat ata ng buntis --para kasi sa akin eh it's such a beautiful time para sa taong iyon. Lalo na para sa akin, ang tagal ko kasi nitong hinintay," she said.

(Every pregnancy is different. Being pregnant is a beautiful thing. Especially for me, since I’ve been waiting for this for a long time.)

Prior to announcing her third pregnancy a few months back, Rodriguez suffered through two miscarriages last year. She has since opted to undergo heparin treatment to help in her delivery.

Rodriguez added: "And then finally, nung totoo na siya, may heartbeat na iyong baby, it's such a precious time na feeling ko, tayong nasa paligid niya, gagawin natin ang lahat para maging happy iyong environment, maging healthy, so iyon ang pinaka-importante na puwede natin gawin."

(It was such a precious time to hear the baby’s heartbeat. We were all happy and we were willing to do everything to provide a happy environment for the baby, so she can grow up healthy. That’s the most important thing that we can do.)

A teaser for an episode featuring Yong's sister was already shown, but she will only get to meet her brother when the housemates complete a task, which involves solving Rubik's Cubes.