I got judged so bad at the supermarket

I was in the supermarket because I have no cat food, biscuits or litter, I was supposed to get home delivery but they cancelled last minute due to not wanting to come out. So I got in my car, drove to the store, waited in the queue to get in with my gloves on, social distancing away from others in the queue. Got in, got all of my cat supplies and pregnant me wanted ice cream and a milkshake too whilst I was there so I grabbed some and took it to the checkout where two of the staff were looking at me and talking to each other. I got to the desk and paid, then got hit with “you’re only supposed to come out for essentials. This isn’t an essential” holding my ice cream In her hand. Like dude I am already here, I am buying essential items because you guys decided on the day an hour before you weren’t going to deliver anymore, if my pregnant ass wants to buy ice cream I can and I don’t need your judgemental opinion on it. Others in the queue heard and were all murmuring to each other, I felt so uncomfortable and embarrassed I just wanted to leave:(. I think I just needed a rant sorry, hormones be wild. Also my husband works away from home during the year so I’m home alone and I don’t have family near me to do shopping for me. I usually rely on the delivery service but as I said, cancelled literally 50 minutes before they were scheduled to come.