Fish - Not good to strain... Will it affect baby or not, this one i not sure. but if u sit on toilet bowl for a long time, always strain, you will get haemorroids... Which we pregnant women are very very prone to...
If possible, dont strain, can take stool softerner... during around 6th week, i had severe constipation for like two weeks lor... Took fybogel, stool softerner, prunes, prune juice... Slowly all ok le... Passing everyday now..