The actress's character Kirsty Soames is currently pregnant with partner Tyrone Dobbs (Alan Halsall)'s baby, with Gumede set to film the birth episode in a few weeks' time.
Gumede explained that the artificial baby bump makes filming difficult, especially in the warm sunshine.
"There is a small part of me which doesn't mind that the thermometer levels are miserable for June, as Kirsty is now heavily pregnant - so I am heavily padded up!!," she wrote in her latest blog.
"Two very tightly fitting bodysuits, each with big cushions sewn in, worn one on top of the other, does not make for comfortable wearing when the sun is out!"
The actress stated that the upcoming scenes will provide a further "challenge" in her career.
"It also serves as a reminder that we will soon be welcoming a baby into no. 9, which will present a new challenge for me as an actor.
"I'm going to make the most of the next few weeks which are quiet for me before the inevitable build up to the 'birth scene' - terrified isn't the word!!"
Gumede and Halsall's characters have been involved in an ongoing domestic abuse storyline in recent months, with Kirsty repeatedly attacking Tyrone.
The actress recently said that she was surprised by the amount of sympathy from fans for Kirsty.