A "bit" of marijuana will do no harm to the fetus, however habitual/daily smoking of marijuana (Or tobacco) will have adverse effects on the unborn baby.
3weeks
Probably.
can majuwnana get out of your system in 20 days if u havent smoked it in about 3 weeks
No.
No, i didn't... so i should be fine ;)
More than likely.
you can't.
it depends on how much you smoked. if you smoked constantly then it's a high chance that it could have a faint line
Marijuana is a fat soluble, and can store in the fat cells of the body. THC in Marijuana can be detected for up to 10 days if smoked occasionally, as long as 45 days if smoked regular.
It's traceable for weeks, maybe months, by professionals.
They should be. Marijuana normally takes between 2 and 6 weeks to leave your system, depending on your height, body weight, and the amount of weed you smoke. So, 2 months (8 weeks) ought to be enough time.
Marijuana traces can be evident in urine upto a week after it was 'consumed'. The tests will only be able to work out when it was smoked insofar as a weaker sample would suggest it had some time to work it's way out of the system, but could simply suggest less was smoked or the subject has higher metabolism rate. Traces will be evident in blood samples for much longer, sometimes up to three weeks.