TTC woth Endo

Hello girls. My name is Marianna 36years and I am writting for the first time. I come from Greece but I live in Birmingham two months now. Me and my husband TTC 15months. Lately in Greece i found a cyst in my right ovary 3.5cm.We went in fertility doctor in Birmingham previous week and he gave me to do some blood tests, ultrasound etc..I did blood tests and ultrasound last friday but so far i dont have any update.Should i call them? I dont know how the health system works here.Also they sent me today a letter for MRI .Havr anyone of you done MRI? I am really scared!