With the new era of space tourism, David Cullen, Professor of Bioanalytical Technology at Cranfield University, is calling for urgent research into the consequences of sex in space.
Source: Sex in SPACE: Scientists call for urgent research
tl;dr: probably hasn’t happened yet, althought there was o ne secretly married NASA ISS couple?? article is mostly worried about effects of no-gravity on dev fetus, so htis is not really about sex, it’s about embryos and such
