Hi there
def sounds like oral thrush, i used to develop it after taking steriod meds for my asthma and recently developed it again (now about 13.5 weeks prego).
daktarin oral gel is ok to use during pregnancy my dr recommended it and i checked at the chemist it is a class A drug.
it would be best for you to be checked out though before starting treatment just in case.
Best of luck.
Belinda.