No idea how this happened...

hoff079

Hello!  Long story short:  In 2013 a laprascopy revealed I had hydrosalpinx in my R tube and a very damaged L tube (fimbria phimosa, meaning clubbed, non-functioning fimbria).  My doctor removed the R tube but left the L tube.  At the time I was also diagnosed with Diminished Ovarian Reserve.  After years of IVF (and, haven't been on birth control since 2012!) I finally had a baby last year.  I'm now 39.  Come to find out last week I somehow managed to get pregnant naturally, am 6 weeks along, and confirmed with a small flicker heartbeat on the U/S.  I am baffled how this happened!  We weren't planning on having any more children because I have 2 step kids, one of which has ADHD, we deal with a lot of conflict from my husband's ex, and we can barely manage running 3 kids around as it is.  So, aside from being baffled, I'm confused and unfortunately not happy when I should be.

That all being said, does anyone out there know someone who this has happened to?  How is it possible that an egg made its way successfully down that tube??!!  
And, can anyone speak to the step-children scenario and help me with why I'm not happy about this?  I know the kids will not be happy to hear of this pregnancy, and I'm not sure how to feel about it.  Any help?