inv9

Genetics

This is a really important post that I’ve been putting off for a while. You see, around the same time that we found out I was pregnant, in fact the same day that I had the bleeding and went to the ER, I found out some major information from my dad. According to him, I have an inverted 9th chromosome. This was something my parents learned during the amniocentesis when my mom was pregnant with me and never told me until now. In fact, from what my father said, my mother didn’t/doesn’t want me to know and I’m not supposed to tell her that he told me. Without getting into the whole long story of my family and secrets like this, it’s pretty fucked up.

Mind you, this is something my nearly 80 year old father told me that they learned more than 32 years ago, so it’s possible he’s in some way mistaken. But, BUT, whatever you can say about my dad’s short-term memory lately, his long-term memory is on point. I really have no reason to disbelieve him.

I did some quick and dirty Google searching and from what I learned inv9 is one of the most common chromosomal abnormalities and is generally considered benign. However, some studies have linked it to infertility and miscarriage. And I read a couple scary stories about multiple miscarriage from people with inv9 on message boards. So, you know, this should at the bare minimum be something they told me when I started all the fertility testing (that they totally knew about) and was asking questions about family history.

Obviously I’ve been rather hyper-focused on this pregnancy and because of that I haven’t been thinking a whole lot about this. But when the genetic counselor started talking to us at the OB orientation I got nervous. I checked the box on the form saying I wanted to talk to a genetic counselor but haven’t heard back. So we are starting with the low-level blood testing for possible genetic issues and we’ll go from there.

My feelings about this are really complicated. I’m (obviously?) pissed at my parents for not sharing this information sooner. Especially my mom if she truly told my dad she didn’t want me to know (from what he said they first had this conversation at a point in their marriage shortly before they were separated for a couple of years so it was a difficult, contentious time for them). It also makes me nervous about this pregnancy and any other possible future pregnancies. Anything that increases chance of miscarriage is no good for my peace of mind. I’m relieved to know now but wish I could have found out sooner when I wasn’t pregnant and testing to confirm would have been simpler. But nothing I can do about all that now. So we go forward. I’ll let y’all know if I found out any more info about me personally or this pregnancy or inv9 in general.

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