The Eagles will take confidence into Sunday's AFLW Western Derby against Fremantle after returning home from a successful two game Melbourne road trip with consecutive victories.

West Coast claimed back-to-back wins over St Kilda and Essendon during their extended stay on the east coast, with coach Daisy Pearce believing the playing group is continuing to build belief and clarity in their game.

Pearce said the Eagles had embraced the challenge of life on the road and were seeing the rewards for their growth across the season.

"It's always hard travelling and winning on the road, but to take the opportunity of spending a week over there together and come away with two wins was what we planned to do,” Pearce said.

"We feel like our game's building and we're getting more and more confidence and clarity in what we need to go after week to week."

After opening the season with four straight defeats, the Eagles have won three consecutive matches to thrust themselves back into finals contention.

Pearce said a significant improvement in team defence had been a key factor behind the turnaround.

"I think the way we're defending as a team's come a long way," she said.

"We'd gone a bit too one on one, whereas now we've had a bit of time in our defensive system and players that were new to playing it have had some exposure to it.

"I just feel like that part of our game's improved and off the back of that we're keeping the ball in our front half a bit better."

Pearce has also been encouraged by her side's growing confidence to attack and back in their strengths, particularly the aerial threats inside 50.

"We're really setting the game up and backing some of our really good one on one players we've got on the ground," Pearce said.

"Just seeing players like ‘Frankie’ (Amy Franklin) out and backing them in and taking the ball forward has helped."

Franklin has been one of the Eagles' standout performers this season, establishing herself as a dangerous focal point in attack while continuing to develop her leadership within the forward line.

The 23-year-old credited the support around her and a strong understanding of her role for helping unlock her best football, highlighted by a career-best 10 goals so far this season.

"We're very lucky here at West Coast to have the resources," Franklin said.

"I've got a really close relationship with our forwards coach, he's been really clear with what my role is, and I think that's really helped me a lot into this season.”

Sunday's clash at Sullivan Logistics Stadium presents another opportunity for the Eagles to mark a significant milestone, with the club still chasing its first AFLW derby victory.

Franklin said the playing group was embracing the challenge with confidence after their recent form surge.

"It'd be massive for the club," Franklin said.

"We've gotten a lot of momentum over the past couple of rounds but so have Fremantle.

"It'll be a really big game, but I think we're going into it confident."

Pearce echoed that sentiment, describing a potential breakthrough win as another important step in the club's development.

"We've got a lot of respect for Fremantle," Pearce said.

"They're always so competitive and play a really strong brand of footy.

"It'd be nice to tick off something we've never done before."