insulin and gd

Samantha
I'm currently 15+5 weeks pregnant. I was diagnosed with gd at 9 weeks. My previous baby was 9.9 and had me birth and he got stuck so the hospital are being very cautious this time. 
What I want to know is, has anyone experienced any side effects from insulin injections? And those who were on insulin were you given the option of a c section or induction? I'm in the uk and have been told I'll be induced anywhere from 37-39 weeks xx