Welcome to the forum
@Debc380 thankyou for joining our community.
I see you still don`t know what to do and we can`t make your mind up
for you just give an honest opinion if we were put in your situation. The
first thing I would do is contact my Dr or and my Diabetes team as
@nonethewiser has suggested if it was outside my immediate area I
wouldn`t entertain it.
Being a wedding there`s probably guests from different areas so an
immediate cause for concern however the risk is probably small as
long as people are sensible. You don`t say if its a church wedding or
a registry office which I`m sure either one of them should have proper
restrictions in place, the main concern is "what if", what if I didn`t go and
miss the chance of seeing (I`ll assume) a friend get married and meet
up with other guests you may even know. What an opportunity to get
out of the house and socially distance with fellow members of the
"human" society at such a small risk.
Then there is the other "what if", what if I went and actually caught Covid
and became very ill or even snuffed it? your choice, take care stay safe.