what are the safety measure in the science lab?
You just need to let them know you are trying to conceive an may possible could be pregnant
Probably you need a new battery-it's happened to use before too! Always in the middle of the night!
They get a coating of dust on the lens and it makes the detector think it's smoke. Take it down and blow it out with an air hose.
Keep going and go really fast, then grab your clothes then get out. You can put them on outside, or even wait until the ambulance shows up. They will give you a blanket, just like in the movies.
be sure they are not detecting carbon monoxide. Some detectors have the capacity to detect both smoke AND CARBON MONOXIDE. If the problem continues, then a repairman should come to check the home for furnace leaks. They have meters to check for carbon monixide in the home. Do it now. This gas is a killer.