Natural vs Spontaneous

On my twin chat board today (I know, I am SUCH a loser), these women are still having the debate over terminology for twin conception. These women are soo high strung. IVF and other fertility treatment women are offended by others claming they conceived their twins "naturally". I have nothing against women who used fertility treatments, but if you're going to use them, you need to be ok with your decision. You can't be so uptight and insecure that you're offended by others claiming their children to be "natural". One particular IVF woman who faults me for using the terminology "natural" over "spontaneous" because her inability to conceive was a medical condition, faults me for not breastfeeding. She can not see any medical benefits to mother or child through FF. Duh, my inability to breastfeed was due to a more significant medical condition, bi**ch. I am not ok with my decision not to breastfeed, but I had no other options. She did!
In closing, I have no problems with IF treatments, and I'm very lucky to have not had to deal with that issue. By referring to my twins as "conceived naturally", I do not imply that is any better than those who were conceived through medical intervention. I am not implying anything other than Carl and I had sex one night, and babies were made. Vent over!