Anyone else experiencing major baby brain?

I’m usually a very hard worker, someone that rarely makes mistakes or has to ask for help but now that I’m in my 6th week I’ve found myself truly struggling!! I’m a host at a restaurant and I’m often taking/putting together to go orders for people over the phone. My last shift, I messed up MULTIPLE times on orders by forgetting things, or ringing them in wrong and not only was it frustrating for me but also my manager. I’m never “that person” who struggles so it was truly frustrating and discouraging. My manager looks at me and goes “you’re killing me today” and it made me break down in tears lol. She knows that I’m pregnant but I work in such a fast paced restaurant there’s really no time for error or excuses. She just had a baby a few months ago, and there’s another girl who’s 6months and I wonder if they even struggle/struggled with this. I just can’t get my thought together! My mind goes blank, I mix up my words. Yesterday when on the phone with my boyfriend, we were talking about baby things to put on the registry and I couldn’t think of the word CARSEAT. I was just at a blank so I go “THE THING THAT YOU PUT IN THE CAR” and my bf goes “.......Car seat Michelle...” Ugh!! I hope this passes. I’m sooo worried that if I keep making these mistakes at work they will let me go. Anyways, just needed to rant. If any of you have experienced this please share your stories because I’m starting to feel like I’m going insane!