I don’t understand

Why am I always hungry.

N I don’t mean oh I can eat

I’m like starving every couple hours.

I am pregnant but my doctor said I should only need about 200 more calories then I usually eat A day so I aim for tht.

But every couple hours I feel like I am starving n feel so weak tht I need to eat.

I even drink cold water n can feel it go down n my stomach feels empty.

I have been in bed all day so I know I’m not burning tons of calories.

It doesn’t make sense to me.

Does ur body really use all of tht in tht short amount of time.