What do you want to discuss, LB? If you want to daven for a boy, you can only do so starting from now until 40 days after conception. After that you can only daven that the baby be healthy, happy, Torahdik, etc (basically everything but the gender).
In terms of beshert, you can daven for everything but a specific person. You can’t daven to marry a specific person, but you can daven that your zivug have all the qualities that you want him to have (there’s a beautiful tefila from the Shelah, btw.). And your zivug can be changed like Leah’s was. As you become better (or daven harder, like in Leah’s case), you can be zoche to a better zivug.