My 7-month-old English labrador got spayed yesterday. She went into surgery at 7 am and we picked her up at 3 p.m. Of course, she was not herself due to the anesthesia. Once we got home, we fed her some lunch and then later some dinner, she was very hungry. Now, the following day, we have noticed she has yet to poop. She has peed minimally but has not pooped once. Is this normal for female dogs after undergoing surgery?