Is baby latching ? Look up for feeding team in your area They are based in children center ( or at least in my area ?
@Louma SHE is sort of latching but she suckling for about 4 mins then gets fussy
@Aleasha the latch might be poor so she might not be taking in enough milk. You need someone to assess it.
Pumping so early on is not an indication of supply, baby on breast stimulates milk supply, otherwise regular pumping but Please join the breastfeeding & lactation support UK group on Facebook and ask them, they will answer all your queries and they are professionals too.