Gorgeous Day Outside

It is a stunninly beautiful day outside here in Los Gatos. It's the dead of winter yet it feels like spring. We have these two silly brown squirrels at the new house that play just like puppies: they chase, frollic, bounce off of trees. They haven't yet discovered the hidden pockets of peanuts that we've left outside for them but hopefully in time they will. Amazingly the roof rats haven't found them either (what on earth DO they eat besides the roof joists?)

Waiting for implantation...

Today is my 3rd day of light activity...JS said maybe I should do SOME moving around to help the little guys lodge into the uterus. Maybe she is right. I was just reading that implantation normally happens on days 6.6 to 7.4. Interesting snippet:

http://www.advancedfertility.com/cryo.htm

When does implantation actually occur in IVF or normal cycles? (We're not focusing on the "window" anymore, but on when real implantation does occur)

A very good study of implantation was published in 1992 by Bergh & Navot.

They studied 33 pregnancies from ovum donation or frozen-thawed cycles with serial HCG levels on the mothers to find the time of "first embryonic signal". The HCG assay used can detect very low levels.

Average first detection was at an embryonic age of 7.1 +/- 0.28 days (range 6.6-7.4 days).

This correlates with the studies of Hertig and Rock in the 1950's (hysterectomy studies) that showed the day of implantation to be day 6.

Thursday about noon would be 7.1 days for me. YIKES.