First of all you should not put the same diaper throughout night, change atleast two to three times, for any urinary tract infection, child will have either of following symptoms , crying while passing urine, increased frequency of micturition, fever, vomiting, loose stools, excessive crying.
Next Steps
can consult pediatrician if any of the above
Health Tips
continue breastfeeding and complementary feeding .
give adequate water .
watch for above symptoms.
avoid using only one diaper throughout the night.