We have a five month old girl child who seems to suffer from constipation, although the poops aren't extremely hard.?

Constipation. If a baby's poops are very pasty like peanut butter then they are constipated. Their poops should be soft and mushy like oatmeal (or even softer). Straining for less than 5 minutes is normal. If the straining lasts more than that they might be constipated.