I should go. - A question usually asked after you had sex and forgot to use

A question usually asked after you had sex and forgot to use a condom. She asks: 'Can we go to the store?' or 'Should I go to the store?'

'I should go.' I said after I realized I was going to be sick.

'I should go.' I told my girlfriend when I saw her holding a pregnancy test.

'I should go.' I said to my friend when he told me he had sex with his teacher.