Bridge Between Souls is Star Trek: TOS story by Karen Fleming.
It was published in R & R #4 and reprinted in Sol Plus #5.
Reactions and Reviews
... is a Spock and Christine tale, it has the usual pon farr
episode where Christine is more or less a hapless victim of the First Officer's mating season. In this one, however, Christine becomes pregnant, and then decides that Spock just isn't worth it. Spock has to convince her he is. 
'Bridge Between Souls' is somewhat more serious, if slightly unpredictable story in which Christine helps Spock through pon farr
- ↑ from Karen Halliday's Zinedex
- ↑ from Datazine #7