Miscarriages that occurs in the first trimester is usually due to something wrong with the fetus and in week 6 the heart starts to beat regularly. That could be one reason if there was something wrong with it but the miscarriage could've happened earlier but just hadn't come out yet.
No they can not.
It might in the first few weeks.
Yes you can have a miscarriage at 4 weeks I have hade a miscarriage at 2 weeks.
No, absolutely not. Not good for your health but won't cause a miscarriage or even a small baby.
yes..i got a period just 2 weeks after a miscarriage
Typically, a five week miscarriage would cause bleeding like a period.
Take Tylenol instead
A medical abortion is only available up to 9 weeks.
Although I am not sure if you mean intentional or unintentional miscarriage, I know that there is a pill that is an "abortion pill" that does, indeed, cause a miscarriage.
The embryo is very well protected in there so I doubt it.
A miscarriage may cause vaginal irritation.
No, normal physical activity does not cause miscarriage.