New relationship RE

Does anyone know if there is rules about new relationships and going to the same RE? The last relationship I was in we started the IVF process but ended up stopping after being together 10 years and splitting up do to him cheating. Now I’ve been in another relationship almost 2 years and we want a baby but I’m scared of the reaction from my RE if I go walking in their with a different man. 🤦🏼‍♀️ has anyone else ever done this?