Some babies react very differently to the effects of a dopler with the sound up. They experience a type of echo feedback to hearing their own heart beat played back to them. Often babies movements will increase in response causing accelerations in FHR- they are more used to hearing your relatively slow HR and intestinal sounds being the loudest sound. Not their fast 150-160bmp played loudly back to them. So you might not get the reassurance wanted from the dopler.
Also the Dopler uses Ultra-sound, and ultra-sound hasn't been proven to be safe or unsafe for use on pregnant women and their babies - there hasn't been enough time since it's routine introduction for any long term studies.. and as the demand for the technology to be advanced, so the frequencies and amplification of the ultrasound have increased, as more clarty in the products have been requested... so we are now using US which are much more powerful than even 10years ago. You have to decide how you feel about that.
SO I would question what benefits, advantages or re-assurances you are going to get to listening into baby "on-tap"? Or would it just make you more anxious?
I personally think that it can offer a women little benefit.. and I also think it is a little out there that so many women on the main forum seem to be ok with using these almost everyday? It would only worry me more - and I have plenty of assurance that baby is fine with my continued growth and fetal movements.
I do know where you are coming from though! I have just got a home birth kit delivered from my MW and in it is a dopler, so I could listen in allot if I wanted, but I think for me it would be more damaging than good... so I'm resisting temptation.
I'm strongly against continuous monitoring in labour, (CTGs), as the only effect this has been proven to have is to increase c-section rates, without effecting outcomes for mother or baby. So intermittent monitoring is enough for me! ;-)
What do you think about it all?
XxX