I had my ops in early April and early May and then waited 3 months for Rads to start. I know it is a long time to wait but I was pleased that my body had time to recover fully. Rads take it out of you both mentally and physically and you need to be strong enough to cope.
I had my first op in March & my second in April. Like you I didn't have chemo but I have only just finished my 3 weeks of radiotherapy as there was a huge backlog of people at my hospital. I honestly don't think you need to worry. I'm sure they wouldn't put us in any danger. Good luck with your treatment.