Its a tough call but I always feel devasted after a failed cycle and its my natrual instinct to make a plan so I dont feel like we are in Limbo. Waiting is the hardest thing to do but i found sometimes it does your mind good. You have down time to mentally psyc up for another transfer. The biggest thing Ive learnt and come to terms with is that TTC is out of my control and apart from trying to be healthy and calm their aint much I can do regarding the outcome. So do what feels right for you and make a plan. If waiting seems like it will tear you apart then go for it.