Inconceivable: One or two - deciding how many embryos to transfer

When we were planning to do a fresh IVF embryo transfer, we had planned to transfer two embryos. At one point in our conversations with our doctor, she said because of my young age of 37, I could have up to two transferred.

But our doctor wanted us to be prepared because multiple pregnancies can have complications and lead to pre-term birth when the babies aren't fully developed yet. They have to give you the risks, but, at the time, all that mattered was that this procedure worked!

Since my body was overstimulating, we didn't get that fresh transfer. The lab director put our five embryos (graded AB, BA, BB, BB and BB) in the incubator that day and all were developed enough to be frozen. That left us with time to research our decision.

For fresh transfer, we were going to do the AB and a BB embryo.

The more we researched the potential risks of a twin pregnancy, the more I started to get nervous about continuing that plan with our frozen transfer. Yes, I want at least one to work. And the cost is expensive, so why not put more eggs in the basket?  (For us it is about $4,500 for the frozen transfer. That includes monitoring visits, thawing out the embryo, the procedure itself.)

Then I thought about my five-year-old son. If there is even a remote chance that a multiple pregnancy could have a complication (and I know all pregnancies are at risk for complications on some level), I have to err on the side of caution. ​I need to be around for him. He needs me.

So, after much deliberation we decided on one embryo - our best graded one, the AB - for transfer. Now, if this doesn't work, we will likely do a two embryo transfer. At least that's what we are thinking at this point, but that could change.

Did you have to make a decision between one or two embryos being transferred? How did you make your decision? Were there any factors that pushed you in one direction over another?