1 Kidney = BFN?


If you’re just joining me on my surrogacy journey, I recommend you start here.

Also, you’re reading a post about pregnancy. There’s gonna be technical/TMI terms here. Deal with it.


One of the more frequently asked questions I’ve been getting lately has to do with my kidney. Folks want to know if only having one kidney will make the pregnancy harder.

The basic answer to that question is: No.

My body has adjusted to life with only one kidney since my surgery in 2007. The only restriction I have on my life with one kidney is that I shouldn’t play contact sports. No hockey, no football, etc. No big deal for me.

There were only two major changes I had to make to my daily life after the surgery: no more ibuprofen (insert big, fat tears. Advil is the only over-the-counter anti-inflammatory that seems to make the biggest impact on my knee pain) and drink more water.

The average person is supposed to drink 8 8-ounce glasses of water a day. Unless they’re trying to lose weight, it doesn’t happen. Granted, we can get a lot of our water from milk, coffee, tea and juices, but 64 ounces of water consumption is not the norm for most people.

64 ounces of water per day is what is recommended for pregnant women. It’s no different than the standard recommendation, but when we’re pregnant, we’re paying more attention to our bodies and doing what’s right for the baby inside.

However, one of the things I was told to do after my surgery was drink 80 ounces of water a day!

It took me a long time to get to 80 a day, but I’ve been doing so for the past year or so.

Sunday I had the embryos transferred. So as of today, I am 4dp5d (4 days post 5-day-old-embryo transfer). The average Big Fat Positive day is around 6 days post transfer, so I’ve got a couple days before I might start to see a double line on my at-home pregnancy tests.

However, one of the tips for getting a BFP is to make sure your urine isn’t too diluted. Morning tests are usually the ones to give you the BFP because you’ve been asleep for 6-8 hours, not drinking anything during that time.

I’ve done a lot of research online and have come up with 0 (zip, zilch, nada) published (online) articles/research papers on the effects having only one kidney can have on home pregnancy tests. All the research is on the pregnancy and birth.

The official Beta (blood) test is next Thursday, but I’m impatient (duh) and want to know now. So I’ve been POAS (I’ll say it once, then it’s up to you to find this explanation again: Peeing On A Stick) for the past couple of days: BFN (big fat negative).
Yes, it’s early. Again, I’m only 4dp5d, but I still want to know. And I’m kinda concerned that I won’t get a BFP on my at-home tests. Yes, the Beta will confirm it officially, but (again), I want to know NOW.
I’m wondering if the fact that I’m drinking 80 ounces of water a day (not including drinks with my meals) is diluting my urine. Some studies suggest that donors’ remaining kidney actually ends up working harder than 2 kidneys, thus filtering more hormones, chemicals, waste from the blood than usual. I won’t reduce the amount of water I’m drinking just for the sake of possibly getting a BFP on my sticks.
Basically, it all boils down to the fact that I am impatient and bored in the evenings and I’m looking for any reason why I haven’t had a BFP yet.
Have I mentioned that I’m impatient?

Leave a Reply

Your email address will not be published. Required fields are marked *

CommentLuv badge

Subscribe to comments. You can also subscribe without commenting.