What kinda agent will be telling someone about a chance of rejection? Although it is possible for an application to be rejected, I don't see the need for such worrisome statement. Please don't bother yourself with such information.........I am hoping you sent in the right documentations. You will definitely be fine. About waiting till end of the year, I am not sure it makes sense.......Once you reach the 6 months mark, try and raise a CSE and also call CIC prompting for a specific reason why they have passed the timeline of 6 months. And also, ask if they can reach the via office directly as you wait over the phone. Someone on this forum called CIC when he got to the 6 months processing time and still on that phone call, he was given the PPR. Don't give up, you will get it, we all will get it.
Less I forget, congratulations for your new born baby!!!