Fibre gel - over the counter in the pharmacy. Take it religiously morning and night!
I am to the point that I’ve gone to the toilet and there’s been blood because I’ve constipation
My midwife recommended a glass of orange juice first thing in the mornings and it's helped massively! Makes everything easier to digest throughout the day apparently
Prune juice and dried figs get as much fibre as possible like bran flakes and veggies