I've made it to the homestretch. As of this Friday, we're full term, 37 weeks. From there it's only three weeks or less to go.

I've also made it to the hardest and most unpredictable stage thus far, and possibly one of the most crucial. And I'm completely running out of steam to keep it up. Baby better come soon!

Hormones are a crazy thing. From day one of pregnancy, I've been on quite a rollercoaster ride. In the early days, before I even knew I was pregnant, I was blindsided by highs, especially fasting.

Then toward the end of the first trimester, the lows started. As a type 2, I didn't have much experience with lows, but once I knew what to expect and basically stopped taking insulin for a while, this was my favorite stage. Suddenly I could eat all the foods that have been off limits since being diagnosed in 2003-white flour, corn, potatoes, sugar and other junk like cookies, cake and ice cream. (No wonder I've put on so much weight! I guess I really can't blame the insulin!) I have to admit, I went on a full-blown potato bender for a little while there.

At around 20 weeks, the honeymoon was officially over. The placenta was working full force, churning out contra-insulin hormones-just the name of which kept me up at night with worry. My husband wanted to know if Ollie North was involved.

In the early days of pregnancy high blood sugar can contribute to birth defects. Around the halfway point, the baby's pancreas begins functioning. When mom's high blood sugar crosses the placenta, baby's pancreas churns out extra insulin to correct his own blood sugar. Since insulin is a growth hormone, this can cause the baby to grow at a faster rate, leading to really big babies and possible birth complications and the need for a C-section.

If that weren't enough, a recent study found that uncontrolled blood sugar during pregnancy can lead to childhood obesity, putting my child at further risk of developing type 2 diabetes when he grows up.

The final kicker is my blood sugar in these last days and hours of pregnancy will affect my son's blood sugar in the early hours of his life. If my blood sugar is high, his pancreas is used to working overtime, which will cause his blood sugar to be unsteady after birth.

Needless to say, the pressure to keep my blood sugar as steady as possible is on. But thanks to these crazy hormones, it's also become nearly impossible to anticipate what to expect next. My insulin doses are now based more on guesswork and instinct than any actual mathematical formula and the results are downright unpredictable.

Just three more weeks to go, just three more weeks to go,