 [ Symptoms ] a friend coughs after every hit when she smokes pot is there any long term effect of coughing all the time on purpose  i am told she believes it increases the effectiveness of smoking pot but to me it seems like it would cause problems down the road to cough all the time even if as in her case it is intentional she does not take what i say seriously because i do not smoke pot and dislike the habit is she hurting herself by doing this [ Disease ] as it is already 4 weeks that your wife is late in her periods then by now her pregnancy test would have been positive many a times delayed periods can be due to hormonal imbalances and not pregnancy so my suggestion is to consult a gynaecologist and get evaluated and a blood test can be first conducted to rule out pregnancy as it is highly sensitive test also by now fetal pole can be seen in sonography therefore a transvaginal sonography can also be done for further confirmation hope this information helps regards