pregnant
The German word for pregnant is 'schwanger'. It is used in the same way as the English word, to describe a woman who is expecting a baby. For example, 'Sie ist schwanger' means 'She is pregnant'.
She is pregnant
In German, the phrase 'Sie ist schwanger' is used to express that a woman is pregnant. 'Sie' means 'She', 'ist' is the verb 'to be' in third person present, and 'schwanger' is the adjective 'pregnant'.
I believe, I am pregnant
In German, you can express the assumption of being pregnant by saying 'Ich glaube, ich bin schwanger'. 'Ich glaube' translates to 'I believe', 'ich bin' means 'I am', and 'schwanger' is 'pregnant'.
Is she pregnant?
The sentence 'Ist sie schwanger?' is a question in German asking if a woman is pregnant. 'Ist' is the verb 'to be' in third person present, 'sie' means 'She', and 'schwanger' is the adjective 'pregnant'.