Amelia Dryer was a witch who ran a baby farm for unwanted infants. She ultimately became responsible for the murders of many infants, and was executed for her crimes. She continued her activities by attacking and killing unborn children as a vengeful spirit, leading to a spike of miscarriages around the world. This ranged in upwards of 40% of pregnancies failing.
Magic runes have been developed which mother's can wear to repel apparitions and protect their child. Unfortunately, these are impractical for a single individual to constantly use. Recognizing a market, private businesses have established maternity centers within cities. These centers are surrounded by large runes which are meant to prevent ghosts like Dryer from entering, protecting the dwellers on the inside. Mothers-to-be can spend their 9 month period here in safety, ensured that their child will be safe until it is born.
The private facilities offers room and board, as well as other services that its occupants would need for their stay. Of course, Keeping them open costs money, and the costs must be passed on to the individual. This can get very expensive, as the person would be spending almost an entire year as a tenant. In addition to this, these facilities only have so much capacity, and space would be limited for citizens. People coming in from the countryside to board here would also be a problem, traveling from their homes to find residency in these protected buildings, adding to the population of the city and straining resources further.
These companies need to somehow manage these issues to prevent the system from falling apart. How can it do this?