@ Pauli77 if you are having LIT it must mean that you and your husband have a few 'matches'. You should only transfer one embie as if you transfer two and one has lots of 'matches' the immune system will flare and prevent both implanting. I hope that helps with your decision.
Also most clinics will only do double transfers for over 40 year olds or after three or more failures. Yay for starting jabbing, it always feels better when you start 😀