Little to none. This time of the month is the safest time to have sex if you do not wish to become pregnant. If your goal is to become pregnant, give your body some time to recover from the miscarriage first.
A miscarriage should not prevent you from becoming pregnant again.
There shouldn't be a problem to get pregnant again.
The chances are great.
birth control increases your chances of not getting pregnant
It's probably just that your body is getting back to normal after being pregnant, however after a pregnancy (even if the pregnancy didn't last) the chances of getting pregnant quickly afterwards are high, so if you have had sex since the miscarriage it is possible that you could be pregnant
Just before your period you are at your most fertile
Same way you did before. About 1/4 women have a miscarriage and there are usually no problems getting pregnant afterwards.
Zero. You have to indulge in unprotected sexual intercourse. Perhaps you should talk to an adult or read a book about procreation.
chances of getting pregnant
Very low, but possible. 1% let's say.
No.
It can but the likelyhood is probably very low. You should treat it right away though as UTI's have been linked to miscarriage if left untreated.