Correct the sentences

Hello,

        May I ask whether these sentences are OK or not?

               How far is your pregnancy? or How far has your pregnancy been?

              At the supermarket; "What time do you close?" or "What time do you call it a day?" or "Until what time do you open?"

               Thank you very much.

Hi! Great questions.

We typically say "How far along is your pregnancy?" or "How long have you been pregnant?"

"What time do you close?" and "What time do you call it a day?" are both correct, but the second sentence is more casual and is usually not used between strangers. 

The last sentence should say, "Until what time do you stay open?" or, more conversationally, we say, "What time are you open til?"

Amy