According to Raising-Rabbits.com, there are several signs of rabbit pregnancy, such as mood changes, nesting and scratching the cage. A major sign of rabbit pregnancy is fur pulling. According to HowStuffWorks.com, a pregnant rabbit pulls fur from her chest and abdomen to create a nest.
Another way to determine rabbit pregnancy is by feeling the abdomen for small lumps. Around day 10 of pregnancy, small, marble-sized lumps can often be felt on the abdomen of a pregnant rabbit. Generally, it is recommended that a veterinarian feel the abdomen to check for pregnancy because pressing too hard can harm the fetuses.