Twin Pregnancy Week by Week: 21 (Positive AFP Results)

pregnancy week 20

Photo by wntg1grl

We're joining Kim (aka wntg1grl), a stay-at-home mom of three who's expecting twins, on her exciting journey from bump-to-babies. Check back every week for the latest developments.

Week 21

What's Happening with Mom:

I'm feeling a lot more kicks. The doctor says it's impossible to tell one baby from the other.  Some of you wondered why I have ultrasounds at each appointment ... that's why. To make sure both babies are okay.

Last week I took the final blood test for my AFP. This is the second trimester test. It came back POSITIVE! Grrr! 

I'm not worried about the results because I will not change anything with the pregnancy. I will not have an amniocentesis unless it is a MUST for a medical purpose.


The nurse did however tell me that with twins it MAY be harder to get accurate results. This was the third part of the testing process. In my first trimester, I had a blood test, then the nuchal scan (a sono). With those results combined, my chances were 1 in 330 of having a baby with Down syndrome. Now, with this blood test, it's 1 in 94.

I will see the genetic counselor today, and they will do another sono looking for different signs of Down such as bone length, facial structure, and I'm sure much more than that. I am happy to do that, and DH is coming with me. Another chance to see the girls!

I have heard of MANY women having a positive result, then having no problems with their child. I refuse to worry. I am given what I am given, and will act accordingly.

I am still hoping for a vaginal delivery. After giving my urine sample, the nurse did say that it spilled sugar. She said this is just because I ate within the last couple of hours ... but I know it's because I ate a deluxe breakfast from Micky D's. Not a good day to splurge!

What's Happening with Babies:

We're about 10 ounces and measuring about 8 inches long – about the size of a large are about 1/3 of the size of our bodies now. Rapid eye movements begin at twenty-one weeks, and we can hear you when you talk or sing to us.

Question of the Week from Answers:

Can you have a vaginal delivery while pregnant with twins? -- tiffany275

Xynyth: Sure, people were having twins and more vaginally long before C-sections were ever an option.

StarLee: I know several people that have done it. My twin sisters were born vaginally. Two sets of cousins were, also.

Past Weeks:

Week 20

Week 19

Week 18

Week 17

Week 16

Week 15

Week 14

Week 13

Week 12

Other pregnancy calendars:

Read More >