NO
No, the patch is less effective than the shot.
No.
Yes, birth control pills will become less effective if stored in temperatures which are too hot or too cold. Ideally, they should be stored at temperatures between 68 and 77 degrees. Excess moisture is not good for them either, so storing them in the bathroom is not a good idea.
The ONLY birth control that is 100% affective is abstinece. But, if you get on a pill, shot, or IUD AND use condoms, you are much less likely to become pregnant. There are several different ways to avoid it.
No stool softeners don't effect hormonal birth control.
In theory all antibiotics can make birth control pills less effective. This concern has not been proved.
No, Depo Provera doesn't become less effective after long-term use. There's a similar urban myth about having to change birth control brands regularly; that's not true, either.
"Low dose" pills are not less effective.
This site will answer your question.http://www.ncbi.nlm.nih.gov/pubmed/9835524?dopt=Abstract
No
no, if the birth control pill you are taking is effective then multiple ejaculations versus one or two ejaculations shouldn't matter. the point of the pill is to halt the releasing of your eggs so different amounts of ejaculation should not effect this.