England introduce Sophie Ecclestone as the field goes back, but new batter Muneeba Ali works her opening delivery away to the fine leg boundary for four.

A couple of singles follow from the rest of the over.

It's Sadaf Shamas again!

She closes the powerplay by easing Bell to the point boundary. That was wonderfully timed and she moves to 25 from 11.

For point of comparison, England were 29-4 at this stage.

Katherine Sciver-Brunt
Ex-England bowler on BBC Two

Image source, Getty Images

England needed something special to break this partnership and that is from Amy Jones. She is up there as one of the best keepers in the world. What a moment for her, she'll be loving that.

Andy Zaltzman
Cricket statistician on Test Match Special

This is the most successful start that Pakistan have had in a T20 match.

Gull Feroza gets in on the action, reverse sweeping Charlie Dean for four and then taking the single to bring up Pakistan's fifty from just 26 balls.

Aatif Nawaz
Commentator on BBC Two

Exquisite strokeplay from Shamas, something she's not had the opportunity to do. She's very inexperienced but she's playing like a veteran, beautiful strokeplay.

Katherine Sciver-Brunt
Ex-England bowler on BBC Two

This is a complete lack of discipline from England.

An explosive start from Sadaf Shamas!

Dani Gibson bowled a decent first over, but the Pakistan number three takes her apart in her second, reaching the ropes from five deliveries.

A couple of cover drives, a lift over point, one that went square and a cut to backward point that a diving Danni Wyatt manages to push onto the boundary sponge.

With a wide thrown into the mix that's 21 from the over.

Sadaf Shamas is the new batter for Pakistan and takes a first ball single on the sweep.

Katherine Sciver-Brunt
Ex-England bowler on BBC Two

Image source, PA Media

They are going to use the sweep, it's a smart bit of bowling from Dean, adapting to their style of play.

Has Charlie Dean got a wicket in her first over?

Sidra Ameen has been given out on the field, it looks pretty out but she's sent the decision upstairs.

Dani Gibson only took off her pads a matter of minutes ago, and now she's taking the ball in England's second over.

She sends down a tight first over, just the four from it as the Pakistan batters can't find the gaps in the field.

Ffion Wynne
BBC Sport cricket writer at Edgbaston

The official attendance has been confirmed as 12,241.

Katherine Sciver-Brunt
Ex-England bowler on BBC Two

I love the pressure that they're putting on England, they're having a go at everything, anything over, wide, they are going to have a go at it.

Lauren Bell's early struggles continue - Gull Feroza drives her straight down the ground for four, before finding a gap in the covers to find the ropes again.

England were four down before they reached 12 runs.

The players are back out there and Lauren Bell has the ball in hand.

She sends down two legside wides in her first three deliveries - between them Gull Feroza takes two off the bat.

Now, here's some viewing for you before we get back underway.

BBC Sport's Aatif Nawaz has explored the world of tape ball and how it's produced some Pakistan's best fast bowlers.

Katherine Sciver-Brunt
Ex-England bowler on BBC Two

England were only able to hold on because of that partnership of Jones and Knight in the middle.