狗狗配完种怎么看怀孕？
狗的妊娠期大约63天，根据配种日推算分娩期大体是准确的，但是具体到某天的具体时间就不太准确了。在分娩前1周左右母犬食欲减退，食量比平时少得多；活动减少，喜欢卧着或休息。腹部明显增大，乳房胀大，乳头红润，乳头底部可见到小结节。 这些变化提示犬的妊娠已经接近晚期，临产征兆会逐渐显现出来。此时应做好接产准备（包括垫草、消毒、助产用具等）以防出现难产。 如果到了预产期还不见生产，就应当注意观察，如果超过24小时还不生，就要请兽医处理。 确定是否怀孕可以通过X光检查、超音波、内分泌检查法来判定雌性动物是否怀孕。
一.X光照相术 x-ray can help identify whether a dog is pregnant or not by looking at the developing embryo through its uterus wall. The most common form of pregnancy determination via x-rays takes place during week six and involves placing an animal in a x-ray machine， exposing it to radiation for several seconds while also positioning a small plate over her abdomen so that the embryo appears on film as a dark area against a lighter background. Because this method requires specialized equipment and training， your veterinarian may recommend it only if he suspects the animal’s pregnancy from other evidence but has no way of being certain until later in the gestation period when such testing becomes possible. Generally， a positive result will be apparent after two days; negative results appear almost immediately. 二.超音波 这种测试需要使用一种超音波仪器，它能直接显示胎儿的形状，判断出怀的是单胎还是多胞胎，并可看出仔狗的性别及胎盘。但这种方法只能用于怀孕期的第5~9星期。
三.内分泌检测法 这种检验方法可测得动物尿中的绒毛膜促性激素(hCG)含量，一般于交配后2—3周即可用放射免疫测定法得到结果，也可采用酶联免疫吸附试验和免疫荧光技术。还可测定孕酮(PGE)的含量来进行诊断，不过此法一般要到受孕近两个月时才会有效。