IBS in pregnancy

Vi

hi, bit of advice required please :) I'm almost 10 weeks pregnant and my IBS has been so much better since carrying a baby. until now. I have a cold at the moment so I'm sure that's not helped. but today I have felt awful. along with morning sickness my stomach has been yo yo ing from good to bad and I recognise it as just my IBS symptoms but has anyone else had a sudden change like this?? I'm assuming it's hormonal!