It lowers the chance
In no way but it does increase the chances the baby will have problems.
smoking weed is bad in general, but yes, i wold say that smoking weed during a pregnancy should be highly avoided as it probably harms the baby.
weed doesn't prevent pregnancy. condoms and birth control do.
Smoking weed, smoking weed, and smoking weed
The only comprehensive study done while smoking weed during pregnancy showed the baby to be normal. So no, weed is not bad.
Yes, it rises your body temperature. If you have a fever it will rise it it a lot.
smoking weed does not affect your period, smoking grass might however
Weed does not protect anyone from pregnancy but it can make the guy fumble with the condom. If the condom is used correctly you have zero chance of pregnancy.
It may increase the chance of nausea, but they will not interact in a dangerous way like alcohol will.
Weed is actually healthy for you, google the benefits
No you can not get skinnier from smoking weed
Acne increase? Lack of doing things they once enjoyed? I mean I know from experience that smoking weed at a young age does make a little tired all the time and mellow, The whole " not a care in the world " thing plays in this.