Measuring 6w4d at 6w6d

Had my u/s today. I'm measuring 6w4d, which is excellent. My calculations put me at 6w6d today, so being off a couple of days is NO BIG DEAL.

HB 156 BPM so that was also excellent.

Next up, 1st OB on the 6th with Dr. Wagener at 8:30am.

Because I know the numbers don't mean much without reference... Average for week 6 is 103 - 126 BPM. We had 156 BPM. So very good.

Last PG, when we went to the 2nd scan I should have been 8 weeks, measured 6 weeks still and HB was weak at 117. Lost that baby 2 weeks later.

Starting at week 5 the fetal heart will accelerate at a rate of 3.3 beats per day for the next month.

The fetal heart begins to beat at approximately the same rate as the mothers, which is 80 to 85 bpm. Below illustrates the approximate fetal heart rate for weeks 5 to 9, assuming a starting rate of 80

Week 5 starts at 80 and ends at 103 bpm

Week 6 starts at 103 and ends at 126 bpm

Week 7 starts at 126 and ends at 149 bpm

Week 8 starts at 149 and ends at 172 bpm

At week 9 the fetal heartbeat tends to beat within a range of 155 to 195 bpm.

The fetal heart rate will begin to decrease and generally will fall within the range of 120 to 160 bpm by week 12.

http://www.buzzle.com/articles/normal-fetal-heart-rate-chart.html