"Well," she said, gaining confidence as this seemed to be going well, "it is rather shocking of me, but I have been doing some research. You see, in the future have heard that people are more free to be together outside of marriage. So I thought that there must be a way for those things to be avoided. There are; many different ways. Medication that reduces the risk of conception, and so on. They aren't particularly convenient here, though, as I would have no way to obtain them."
She paused, knowing this was all very forward but they were to be married and she was determined to be able to discuss this with him without shame or awkwardness. "But there are some things - that I believe exist in our time - that we could obtain here. Condoms."