19 and new to TTC

Hi ladies! I am 19, and very happily engaged and soon to be married. My fiancé has one baby with another woman but because of tensions between them, he does not get to see his son very often, which is the main reason we decided to TTC. If anyone has any helpful tips or tricks for us or any ways to "speed up the process" as silly as it sounds I would really appreciate it!! Thank you and happy baby journeys!