I'm 21 weeks pregnant. Last week I had an anomaly scan. The baby is ok…

I'm 21 weeks pregnant. Last week I had an anomaly scan. The baby is okay, but my cervix has shortened. 3.1cm (31mm). My first pregnancy, I had a cervical cerclage. This time, the doctor advised bed rest, but I can't. My baby is only 2 years old. Nobody is there to help me. Can I do all the household work and take care of the baby? Plz reply me.