what she means is that the doctor told her that it is very rare to ovulate at two completely different times, like a week apart and she is correct, that is suuuupper rare, no matter how many times folks think it happened to them, to double ovulate more than about 12-24 hours apart is a very rare thing, the hormone signal that the first ovulation sends out effectively shuts the system down, with fraternal twins the second egg got out before the signal was picked up.
Tifanny, first off, congrats, twice!! and welcome to mothering.com!!! please also join other military families over on that group, we would love to have you.
Military Family Life
as for the measuring differently, i will say a few things.
- if it took clomid to have you O that puts you on a pretty precise hormonal timeline, not the type that would O out of sequence most likely, but you never know, im sure stranger things have happened!
- notice how neither kids mesures exactly what the date is? mesureing is pretty impersise. and we are talking milimeters here, so one tech will me sure things diferntly than anotehr even in the same day.
- notice that in the last scan each baby measured just 5 or 8 days off in their own way, if that was a singleton baby in there, they would probably never have mentioned it!
By 18 weeks my twins clearly had two differnt body types, and two difernt sizes, they were like that from at least my 14 week NT scan and still are at nearly 2 years old.
Did you get a NT scan around 14 weeks? it is when the measure an area on the back of the neck to look for some genetic issues
Are you getting a 20 week anatomy ultrasound? these things can tell you a lot, since they will measure a lot of smaller things and get a good look at all the organs and large bone lengths. have you determined sexes yet?
from my math it looks like the babies are only measuring 8% different, at basically 19weeks, that is almost exactly what mine were, (7% if i recall at 18+4) this did not concern any of my doctors at all. the wanted to see that both were growing and that their basic parts like leg bone and head circumference matched up with overall lengths and such
yes there are a lot of unknowns, but your babies have gotten past the halfway mark and are still growing, i hope that gives you some calm.
where will you be flying out to for the birth, do you have a support system in place where you are going?
anyway congrats again and again, it may be stressful right now, but you have in fact won the lottery!