My wife is pregnant with our fourth child and has had three prior C Sections.

**Please note, I am not a medical professional, so please forgive any errant use of medical terms in the following**

My wife's titers are elevated as she has a number of antigens in her blood- I believe they were called Kell, E and another... There are three of them. One antigen showed up in a our third pregnancy and now there are three with this fourth pregnancy.

My blood was tested and I was negative for at least one of the antigens. This seemed to surprise the doctor who offered no explanation as to why in our visit.

Prior to the test I was told that I would have the antigens because my wife was reacting to them from blood from the prior babies / umbilical cord getting into her system from the prior C Sections and that the effectively half of the foreign blood came from me as the kids were a mix of my and my wife's blood.

My wife has never had a transfusion nor needle stick. Nor is she is a drug user.

What are some viable reasons these antigens could be in her system?

Someone put a bug in my ear that it could be infidelity and that one or more of my kids may not be mine biologically.... Please understand, I have thought long and hard about this before posting... whatever the answer, the outcome will not end my marriage. I love my wife and my kids, regardless of their origin. If the only plausible explanation is infidelity, then my goal would be to work on our marriage to stop the practice. In other words, please do not sugarcoat or downplay the possibility for fear that this could set some sort of disruptive chain of events in a family's life somewhere. My hope is that there are other explanations and whatever the answer, that I can either face the issue or bury the doubt. I sincerely appreciate your consideration.
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replied June 20th, 2018
Thank you for asking at Ehealth forum!

I read your question and I understand your concern.
You are misdirected.Not only that,you are overthinking.These are all common blood antigens and found in all humans irrespective of race,sex or ethnicity.Some A,B,D can be found in you and some C E and F inside me.Among them,only Rh,another antigen,is of importance during child bearing.There is no relationship of infidelity here.Stop thinking in that way as these antigens are inborn and can be found in you,me and even in the adviser of yours.
I hope it helps. Stay in touch with your healthcare provider for further guidance as our answers are just for education and counseling purposes and cannot be an alternative to actual visit to a doctor.
Take care

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