Does anyone know if IBS can cause uterin contrations?? I have been having a horrible time with IBS-D and it is getting worse, I have to call into work, cancel plans... The cramping from it is unbearable at times. The OB told me I can take imodium daily and citrucel to bind it. I swear neither is doing much good. I am 32 weeks pregnant and I have been having a lot of crmaping (uterin) they told me to drink water and rest when this happens. I am so scared that the cramping from the IBS will cause preterm labor, can it??