Transfer 1 or 2 embryos in FET??

Angela
Anyone else struggling to decide whether to transfer 1 or 2 embryos? I have 3 frozen left and RE gives single embryo (that was frozen, thawed and refrozen) 30% chance of success compared to the other two that are frozen together a 45% chance of success and 20% chance of twins. Not aiming to get twins but I'm conflicted. Husband wants 2, I'm leaning towards 1...