Might be overreacting but....

So with all the panic out there it’s hard to not overreact especially being 6 months pregnant and have a 3 year old but my mom is visiting from California on Wednesday and I’ve been telling her not to come and to reschedule her visit but she claims it’s fine because air travel will kill the “sickness”. She also lives with 2 very frail elderly people but demands that it’s not a problem. My husband also works from home and since I stay at home with my toddler we’re in our own bubble except for one weekly grocery trip so we don’t get our a lot so I’m not to worried about us but I’m worried about my mom because she’s in an area with a lot of people daily and doesn’t seem concerned about spreading anything to us