Nuvaring

I just had my gyno appointment today for switching my birth control, I used to take the pill and was a month off it had my period (extremely painful) and am switching to the ring but i was told to take a pregnancy test before. Although nearly 100% percent sure i’m not pregnant I don’t want to wait for my next period to take the test, my last period was 5 days ago and they’re absolutely horrid. I’m not sure if i should just start the ring today because even if i’m pregnant a test won’t show this early and I physically don’t think my body can take my periods anymore haha. All sex was had with a condom regardless before then or 3 seconds then a condom in-(yes i know that’s it’s possible for precum to carry sperm but this was before my period ever happened so I extremely doubt it). Should I just start it today?