Story Writing Discussion

Hey gang, thought I'd get a discussion going. Pregnancy can be such a beautiful and erotic thing. In my opinion it is underutilized in erotica. I'd love to hear your thoughts on involving pregnancy in erotic works.

1)Is it better to start the character out pregnant, end the story alluding to her being pregnant, or show her progression up to some stage in pregnancy (what point)? Which option do you think holds the most potential for heating up the readers.

2)How do you write believable pregnancy given that many women experience different sets of symptoms. Also given that many symptoms run counter to creating an erotica atmosphere (i.e. morning sickness)?

3)Do you think certain other kinks/fetishes provide for stronger or weaker pregnancy stories? If so which ones? Why do they make it stronger/weaker?