I don't think you are up on modern science in regards to this pal. You can be schooled by the Nurses at SLU. All birth control except the pulling out method and condoms do cause abortions. This is just a fact. This includes those drugs that you mentioned. Go ahead and call that number and talk to the research nurse Mary Lee Barron I listed. She can share research charts showing your wrong even on the drugs you listed. You playing with fire.
And sterilization, which, as I understand it, is the method of birth control employed by 45% of fertile couples.
I am curious about diaphragms, although I am old enough to not even know if those are used anymore.
I also think that if there is never a diagnosed pregnancy any theories we develop about why a conception doesn't implant are simply speculative. We can't do anything more than guess because there are many reasons why implantation doesn't take place, and I have read that 50%-60% of conceptions fail before menstruation.
Implantation failure has diverse causes, including abnormal cytokine and hormonal signaling as well as epigenetic alterations.[8] Recurrent implantation failure is a cause of female infertility. Therefore, pregnancy rates can be improved by optimizing endometrial receptivity for implantation.[8] Evaluation of implantation markers may help to predict pregnancy outcome and detect occult implantation deficiency.[8]
Luteal support is the administration of medication, generally progestins, for the purpose of increasing the success rate of implantation and early embryogenesis, thereby complementing the function of the corpus luteum.
I agree that it is possible that taking the pill can change secretions that might make implantation more difficult, but there are also many babies who were born whose mothers took the pill.
And there are lots of things that can interfere with fertility--I have even heard that drinking Mountain Dew lowers sperm count.
As I always say, this is all pretty irrelevant to me. I have three adult children--none married--no grandchildren. I would like to have a few grandchildren but I am sensible enough to realize that they are the ones who need to be ready, not me. One has come close to marriage a few times and would like to marry. One is a confirmed bachelor. One is still completing her education.
I am sure that in extremely rare conditions that there are women, primarily women who are not consistent in the use of the pill, who may conceive a zygote that never implants, but in every case the reason why the zygote didn't implant can only be speculated upon, not proved.
And I am not saying this to say birth control is right. I continue to believe that it is different from abortion.