Now 30 weeks pregnant the solicitor and Fermanagh public representative says she is extremely excited at the prospect of becoming a mother for the first time.
"The time has just flown in, it really has," she says, "I'm looking forward to it but I'm also a little apprehensive!"
Due to give birth on December 7, this will be the first grandchild on the Brooker side of the family.
"I found out when I was about four weeks pregnant," she explains, "We know the sex of the baby but we are not telling anyone else. It's nice that it's our wee secret for now."
A local councillor for over two years now, she is excited to have her baby in the new multi-million pound South West Acute Hospital.
"I have heard a lot of good reports about how lovely the hospital is and that the maternity ward is top notch. The staff are excellent, but of course we know that already from the Erne Hospital. So that's something else to look forward to as well.
"Aaron is being a modern-day man by coming to the ante-natal classes too -- he is just as excited about becoming a parent as I am!"
For the time being, Mrs Brimstone says she is playing it by ear when it comes to the question of taking time off from her civic duties.
"I'm really conscious that I enjoy my council work so I don't want to miss out on it. So I'm just seeing how it goes for now."
The soon-to-be yummy mummy says she hasn't had any cravings so far during her pregnancy.
"I have gone off some foods though and I can't drink tea! For the first three months the smell of roast dinners tended to make me quite nauseous. We went away for a weekend and I remember sitting down to breakfast the next day thinking I really wanted to eat something but I just couldn't -- I was very conscious that my stomach was just churning!"
She says her remedy during the first trimester sickness was plenty of sparkling water.
And having enjoyed the boost of energy that comes with the second trimester, Mrs Brimstone says she is now starting to feel a bit more tired and short of breath coming closer to her due date.
"If I have a busy day adrenaline though, keeps me going," she insists, "If I'm working 9 to 5 and I have a Council meeting later that night it's only when I get home that I realise I'm tired. I try to walk and I try to keep fit but I do find now that I have less breathing space!
"During the first few weeks of the pregnancy it was nice that no one else knew -- to have that little secret. But it was also really nice to tell everyone too."
And her tip for other expectant mums?
"Just enjoy the pregnancy because it really does go in so fast. Enjoy the experience, it's such a lovely time. But I'm also looking forward to meeting the baby for the first time too!"