This is a grey area as the client tells you every thing is well with the pregnancy.
You like to do the treatment but the first 12 weeks is a crucial time.
As miscarriages can naturally happen up to this time.
The massage / oils can be all fine with no side effects but in todays world if a miscarriage happened close to the date of the treatment then a law suit could point towards you.
So myself I stay clear until after 14 weeks and talking to other therapist they have similar response.
Hope this helps.
Maggi from Sunny Axminster