I have read series of contrary opinions on the choice of pregnancy as the reason for inviting one's mum, I am at the verge of inviting my mum over to witness and give moral support whilst being conscious of avoiding the word "Care" in the letter of invitation. Does anyone have an experience or information to share about the subject matter.

It depends on whether this is her first time of visiting the UK.If it is not there would have been a pattern to show that the applicant has been and gone back severally.This was what was applicable to my.mum as it waa just like any other visit.But i have heard from a couple of people that including coming to care for grandkids always arouses a suspicion of overstaying on the part of the BHC peeps
Esp with the outrageous child care costs they often believe these parents could be tempted to stay back to help.Depending on your status though (not too sure)i think there is a dependant visa applicable to aged depedants over 60.
I think travel section would be better suited for more varied responses.

@Damiso, this is her first time in the UK, and i do not want anything to block her chances.

adonai36: @Damiso, this is her first time in the UK, and i do not want anything to block her chances.

Based on a case i heard from a friend of mine,her mum was refused and ONE(amongst others mainly financial) of the issues was that the ECO picked on the fact that the sponsor(my friend) was expecting and he did not feel the applicant has substantial ties to Nigeria.He mentioned that she was a possible over stayer.

I dont want to say mention it or do not cos i still believe you would get better advice on the travel section.