Hydrosalpinx discovered during baseline scan during IVF cycle

Hi, I started stims on 20/02- Today was my 1st scan since starting stims. Today they have picked up that I have Hydrosalpinx (fluid build up in blocked tube). I have a re scan on Wednesday to check on this and have been told if the fluid hasn't gone then the cycle will have to be abandoned and I will have to have surgery on my tubes. Has anyone else had this? What is the likelihood that this will improve on its own and the cycle can continue?

Thanks in advance X