working late nights / 21 + 4

So i’m currently 21w pregnant and i do shift work at my job. Recently i have been on constant close shifts meaning i can finish anytime from 1230-3 depending on my team close. The shifts they’re putting me on are exhausting me to the point i feel like my mental health is taking a hit from it. Everyday im waking up exhausted because of working late, not being able to sleep and then getting up and doing the same thing the next day - for the whole week. I am lucky if i see my family / friends at all on weeks where i am closes.

Along with that im constantly training other trainee managers or im on my own so i have no support - im lucky if i even get a break on these shifts because of how busy we are during summer. I have went 8 hours hardly even getting a seat, no food and little water throughout these shifts and it is totally overlooked by other management team because ‘it’s summer’.

Can anyone offer any advice? I’m not sure if i should speak to my GM or midwife/doctor about it because it’s just getting too much now.😴