Should i postpone my small shower if nobody has cancelled?

My bridal shower is supposed to be this coming Saturday, about 30 people. Almost all of my guests (except my fiancé’s grandma) are in their early 30s and healthy. I was originally going to host it on my cousin’s large patio. Now, in addition to the fact that it’s been raining all week, we have this virus situation. Most likely, I will have to move the event indoors to a fairly large living space (the house is huge).


None of my friends have backed out. However, my aunt went into this whole tantrum about how I am educated and should know better than to keep the event on - and that she can’t believe I haven’t canceled, and that I should cancel. My MIL and mom on the other hand say they really don’t think it’s an issue, we are only 30 people - all young and healthy.
I don’t know what to do. I can’t postpone - my wedding is less than a month away, and even that may need to be pushed back. I understand that people are rightfully concerned, but at the same time it’s a really small event and realistically chances of any issues are very low. I am worried people will soon start to flake and I’m pretty frustrated with my aunt for being so pushy and rude about it. What do you guys think?