Many hospitals now test mothers after giving birth. Even if you refuse to be tested, they will often test your baby instead. Unfortunately, many urine drug screenings seem to be completely thrown off by a pregnant woman's changing body chemistry, so you may want to take an at-home drug for marijuana and other drugs, even though you're pregnant.
Failing a screening at a hospital can result in Child Protective Services opening a case, even if the result isn't accurate, but testing yourself can indicate what the result will be and whether you need to take precautions.
Can I take an at-home drug test for marijuana while I'm pregnant?
Sure, you can test yourself for marijuana at home, but please be aware that the result might not be accurate. If you have a specific reason for testing yourself for marijuana, you may want to get a multi-panel marijuana testing kit instead. These kits test for marijuana at different cutoffs, so you can get a feeling for how clean you are. Stay away from cheap testing kits, because these can be even more inaccurate.
If you're worried about false positives, you're probably more likely to fail for opiates or methamphetamine. These are serious drugs, so any false positive for these is going to ring a lot of alarm bells. In this case, you probably want to get a good quality 5-panel home testing kit. These kits allow you to test for all the common street drugs at once.
What if I fail my at-home drug test for marijuana?
If you fail your home drug test, it's best to check the law in your state and your hospital's policy on testing mothers (or their children) after childbirth. For example, Colorado law defines child abuse as cases where "a child tests positive at birth for either a schedule I controlled substance : or a schedule II controlled substance." Now, even though marijuana is legal in Colorado, it's still a schedule I controlled substance. This means testing positive for marijuana will lead to child abuse allegations. In contrast, mothers-to-be can smoke tobacco and abuse alcohol with legal impunity.
While EMIT urine drug tests are common and cheap, hospitals might choose to test your blood instead. Blood tests are much easier for marijuana users to pass, with light users passing after a couple of days of abstinence and heavier users passing after two weeks. These tests are usually much more accurate than urine screening tests, but it's unfortunately impossible to test your own blood without going into testing center and having a professional test it.
If you fail a drug screening at the hospital, ask for proof. If it's based on the result from an EMIT device, demand a second more thorough test. This could involve testing your urine, blood, or saliva with gas chromatography-mass spectrometry, for example.
You can also buy detox drinks that help you pass urine drug tests, but make sure you get one that's suitable for use during pregnancy.