Would it be great if I took my sister to my husband's house for a few days? The due date is coming, my mother-in-law is taking care of me at home on holiday, and my husband is not at home.

It doesn't matter, your sister is your relative, so it's wonderful. Even in ancient times, you could ask your sister to visit your sister and stay at her husband's house. You shouldn't think it's wonderful. Normal things, don't be too lonely with your sister. Just take care of your mother-in-law's emotions and don't make the elderly feel bad. After all, you spend much more time with your mother-in-law, so adopt me.