I've only done one story so far John's summer adventures at Mrs. Jones's house -Short Erotic Story- and I'm approaching it the same way you are. I don't know how it's goind to end. I make it up as I go along.

Nice moral dillema you added to your story with pregnant woman. "I'm going to be a dad too"... nice one. Upvoted and followed.

You're welcomed to the same. Cheers.