As LG and several others have pointed out, your external body temp. isn't warm enough to successfully get an embryo to grow healthily . Keeping eggs warm during a power outage in your bra or your sports cup is completely different than full on incubation. You cant lie in bed for a full 21 days can you?
I totally get the novelty of it, I really do, but the practicality of it and the sanitary questions are overwhelmingly in the 'best to get an incubator instead' camp!
I totally get the novelty of it, I really do, but the practicality of it and the sanitary questions are overwhelmingly in the 'best to get an incubator instead' camp!