I'm not familiar with IUDs and frankly while we're discussing things in America there's no reason to mention them. Thanks to toxicshock syndrome in the first version of IUDs the AMA won't even consider model 2 so what's the point. As for the pill the aboritificant properties are grossly overblown from the old days. They never actually had anything in them that caused abortions, they had (emphasis on the past tense, almost none of the modern day ones have this and Dr.s will only prescribe the old style under very limited medical conditions) a hormone that caused the period. The modern ones don't, they have 21 days of stuff to prevent ovulation, then comes iron (and not all models have iron pills, there are 21 and 28 day versions). The infamous brown pills (the final 7 ni most 28 day prescriptions) are basically just placiboes with some iron suppliment thrown in, really all they do is keep the woman taking the pills every day (note I have no idea how the long term injections work, the only women I know that tried it got major rashes and had them removed).
The only real danger most birth control pills is if the pregnancy goes undetected for too long. The active pills are high in some vitamin (A I think, I'd have to look it up) that's very dangerous to fetuses in the 3rd and 4th months (OBs generally are thinking that most birth defects are caused by too much of this). But this is only really a problem if it goes undetected to the third month (which is pretty unlikely but can happen to women that have irregular ovulations) and the woman remains on the pill. BTW most of this is laid out in the warning packet that comes with the pill, it shouldn't be news to anybody.
Thank you!
"As for the pill the aboritificant properties are grossly overblown from the old days. They never actually had anything in them that caused abortions, they had (emphasis on the past tense, almost none of the modern day ones have this and Dr.s will only prescribe the old style under very limited medical conditions) a hormone that caused the period. The modern ones don't...The only real danger most birth control pills is if the pregnancy goes undetected for too long. The active pills are high in some vitamin...that's very dangerous to fetuses in the 3rd and 4th months..."
Birth control pills fool the body into acting as if it's pregnant. Birth control pills, also called oral contraceptives (OCs), come in two forms: the combined OC, a combination of two synthetic hormones, estrogen and progestin; and, the minipill, which consists solely of progestin. Combined OCs are more commonly used, though both kinds are available through health care providers. The combination pill prevents ovulation by suppressing the natural hormones in the body that would stimulate the ovary to release an egg. By taking this estrogen throughout the month, you insure that no egg will be developed or released for that cycle. Progestin thickens the cervical mucus, hindering the movement of sperm. Progestin also prevents the uterus's lining from developing normally; so, if an egg were fertilized, implantation is unlikely.**That is a spontaneous abortion. The morning after pill does the same thing. The above is taken from HOW DO BIRTH CONTROL PILLS WORK? from Columbia University.
The Depo-Provera shot causes spontaneous abortions. (I think. I'll let a doctor back me up on that one).