Normal Cycle After Surgery

Jessica
My fiance and I have been ttc since last August. We got a bfp in October. Miscarried at nine weeks 3 days. We waited the 3 months the doctor recommended. Last month we were thrown another obstacle. I have crohns disease. On March 14th I went to the er with severe abdominal pain. I ended up having to have my small bowel resectioned. My period wasn't due until the 30 of March I ended up getting it on the 18th while I was in the hospital. I should have gotten af on Friday April 14th and nothing but my pregnancy test was negative. Anyone else ever been through surgery and it sends your cycle out of whack?