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How early do you really need to know?

post #1 of 26
Thread Starter 
This might be a weird question, but I'm pg. I took clomid, and my beta numbers were on the high side, though not crazy, so I'm wondering about twins. However, my dr wants to do a u/s at 6 weeks. I am thinking I want to wait until we can do an external one, whenever that is. But am I missing something? Is there a good reason to do a headcount so early, and not wait until 12 weeks or so? Any advice appreciated! (x post in pregnancy)
post #2 of 26
Sometimes one fetus disappears - if it would help you to know there were two, then you might consider it. My o/b u/s was at 9 weeks, and ordered by my OB because I was "huge" and there was a difference in my size and the date of my last period. Sure enough, it was twins.

As long as you eat well and are gentle with yourself - I wouldn't think you'd ever need to worry about one or two.
post #3 of 26
Quote:
Originally Posted by rainbowriffic View Post
Sometimes one fetus disappears - if it would help you to know there were two, then you might consider it.

That's true. Otherwise, though, as long as you take care of yourself there's really no time that you NEED to know by. I didn't find out until 30 weeks and, frankly, I'm glad I didn't since I was able to bypass all the medical "necessities" thrust upon those pregnant with multiples. Of course, I can say that because I've been blessed with 2 fullterm, healthy babies. If things had not worked out that way I might feel differently about that, who knows. It's really up to you though, not the dr!
post #4 of 26
I don't think it's critical to know except that you really need to stick to a good diet with tons of protein, which should start very early obviously.
The other big thing to know is whether they're in the same amniotic sac - monoamniotic/monochorionic twins have a very high rate of complications, and do need close monitoring for growth discordance (where one twin gets the majority of the ourishment and the other doesn't grow well). For that though they usually do an u/s at 20 weeks and then a growth scan every 3-4 weeks after that.
So I think you really could wait until 19-20 weeks.
post #5 of 26
I did not find out until 18 weeks....a perfect time, I think. At that point, I personally would want to know if they are monoamniotic etc....
post #6 of 26
Thread Starter 
Thanks for the responses. I don't think I'd want to know if one "vanished"- that would freak me out. And I'm glad to hear there is nothing wrong with waiting to do just the 20 week u/s. Having read the risks of u/s I feel like it would be safer to wait- at least that way organs have formed and such.
post #7 of 26
Good thinking mama!
post #8 of 26
I found out at 7w 4d and spent several weeks worrying that one was going to "vanish." I don't know if I could've waited until 20 weeks to find out. Well, I guess I wouldn't have known the difference. But man, I started getting big fast. My SIL was due 3 days before me and at 20 weeks we visited her in Hawaii and I was waaaaaaaaay bigger than she was. I would've felt like a freak if I didn't know it was twins by then!
post #9 of 26
And don't rely too much on the betas. Mine were smack in the middle of "normal" and I had trips!
post #10 of 26
Thread Starter 
One other thing I need to figure out though- if I knew it was 1 I could make plans to switch to a midwife, if it was 2 I could find out if I could birth them at the Farm (I'm just outside of Memphis). I'm not in love with my OB, and I don't know exactly which way to go with my care if I don't know how many are in there.... The midwives here are hb only, and don't really work with OB's. And I guess I've already got pg. brain, because thinking that through seems really overwhelming right now.
post #11 of 26
Quote:
Originally Posted by mimid View Post
And don't rely too much on the betas. Mine were smack in the middle of "normal" and I had trips!
I agree. My numbers were on the low normal side.
post #12 of 26
Thread Starter 
Quote:
Originally Posted by nathansmom View Post
I agree. My numbers were on the low normal side.
I'd feel better if you were saying they were really high, but it was only 1. But I get what you are saying.
post #13 of 26
Mine were SUPER High & I had a twin PG and one 'reabsorbed'
post #14 of 26
Thread Starter 
OK, what were the numbers for "super high"? At 16 dpo mine were 1245 and 3 days later 3690.
post #15 of 26
Guideline to hCG levels during pregnancy:
hCG levels in weeks from LMP or in gestational age* :

3 weeks LMP: 5 - 50 mIU/ml
4 weeks LMP: 5 - 426 mIU/ml
5 weeks LMP: 18 - 7,340 mIU/ml
6 weeks LMP: 1,080 - 56,500 mIU/ml
7 - 8 weeks LMP: 7, 650 - 229,000 mIU/ml
9 - 12 weeks LMP: 25,700 - 288,000 mIU/ml
13 - 16 weeks LMP: 13,300 - 254,000 mIU/ml
17 - 24 weeks LMP: 4,060 - 165,400 mIU/ml
25 - 40 weeks LMP: 3,640 - 117,000 mIU/ml

These numbers are just a GUIDELINE-- every woman’s level of hCG can rise differently. It is not necessarily the level that matters but rather the change in the level.

Key things to remember about hCG levels:
About 85% of normal pregnancies will have the hCG level double every 48 - 72 hours. As you get further along into pregnancy and the hCG level gets higher, the time it takes to double can increase to about every 96 hours.
Caution must be used in making too much of hCG numbers. A normal pregnancy may have low hCG levels and deliver a perfectly healthy baby.
In general the hCG level will double every 72 hours. The levels will reach their peak in the 8 - 11 weeks of pregnancy (the third month) and then will decline and level off for the remainder of the pregnancy.
post #16 of 26
Quote:
Originally Posted by OTMomma View Post
OK, what were the numbers for "super high"? At 16 dpo mine were 1245 and 3 days later 3690.
It looks like your taking about 72 hours to double which is normal. Maybe your someone who has high hcg levels? Or maybe your having twins? I have a friend who was pregnant at the same time I was with my twins, her first beta number was 2200 (I may be off on her excat number) and mine was 320 or close to that, 48 hours later she was well over 10,000 and I was barely at 500. She had an u/s at 7 weeks and had one sac/one heartbeat and I had 2 sacs/two heartbeats. I just think she produces hcg at a much higher level then I do.
I hope it turns out the way you want it.
post #17 of 26
Quote:
Originally Posted by OTMomma View Post
OK, what were the numbers for "super high"? At 16 dpo mine were 1245 and 3 days later 3690.
I think at like 6 weeks past LMK mine were something like in the 100,000 range...
post #18 of 26
ETA: I agree too much emphasis on the # isn't helpfull.
They aren't a good guage of Multiples in-and-of-itself.
post #19 of 26
Thread Starter 
Ok, that all puts it into perspective. Intellectually I know its just numbers, but as a crazy pg lady, its hard. I know if there are multiples in there, it will be fine, but it really scares me.
post #20 of 26
Don't let it scare you, it is a wonderful blessing and challenge (if there is more than 1)!!
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