Fanfiction.net is also a good place. There are many writers who post their 'kara and mon el' related fanfictions there. Just make sure to use the right keywords in the search to narrow down to the ones with their kiss.
You can try Archive of Our Own (AO3). It has a vast collection of fanfictions, and there are likely to be many about Kara and Mon - El being pregnant. Just use the search function and type in the relevant keywords.
He might leave to protect Kara and the unborn child. Maybe he discovers that there is some kind of danger following him that could put them in jeopardy, so he decides to sacrifice his time with them to keep them safe.
Even though Mon - El leaves, their relationship can still develop. Kara could keep a journal for the baby, writing about her feelings for Mon - El. When Mon - El returns (if he does), he could read it and realize how much Kara truly loved him. Also, Kara might have dreams or visions of Mon - El during her pregnancy, which could show that their connection is still strong on an emotional level.
You can start by searching on popular fanfiction websites like Archive of Our Own (AO3). Use the search terms 'Kara and Mon - El' and look through the results. Check the ratings and reviews to find the better ones.
I'm not entirely sure what'mon tsboo' means. But 'huge cock' could potentially refer to a large rooster in a story context. Maybe it's about a big rooster being in front of some sort of made - up scenario related to'mon tsboo'.
They would become more united. Having a baby together would make them a family, and they would have a stronger bond as they face the challenges of raising a child. Their relationship would be more about teamwork, not just as superheroes but also as parents.
There's not enough context to really know the details of the 'buzz mon click secret story'. It might be a story related to some sort of buzzing sound or action (the 'buzz mon click' part could be a unique name or action sequence) and it has a secret aspect to it, but without more information, it's hard to say more.