1 The time of day also affects pricing. 2  Security guards working at a late-night party in the city may cost $30-$50 per hour, for example. 3  An off-duty police officer typically costs $40-$60 per hour for security guard services. An unarmed guard from 21st Sentry Security in Dallas-Fort Worth typically costs $14 per hour, while an armed guard starts at $18 per hour. 2  The time of day also affects pricing. 3  Security guards working at a late-night party in the city may cost $30-$50 per hour, for example.
About 20% of women have some bleeding during the first 12 weeks of pregnancy. Possible causes of first trimester bleeding include: Implantation bleeding. You may experience some normal spotting within the first six to 12 days after you conceive as the fertilized egg implants itself in the lining of the uterus.
Most of the time, a specific cause for miscarriage cannot be identified, though up to 70 percent of first-trimester miscarriages, and 20 percent of second-trimester miscarriages, are caused by chromosomal anomalies. Other possible causes could include infection or exposure to environmental or industrial toxins.