If you are not a big dairy person, than I do suggest you think about taking a calcium supplement. Talk to your midwife or doctor about it to get a supplement that they recommend. Be sure to avoid calcium supplements from 'natural' sources, particularly oyster shells since they may be contaminated with lead. Also, look for foods that are calcium fortified. If you don't like milk, just eat the cereal out of hand, like crackers or snack mix.
Dry carbohydrates are often good at calming any morning sickness as well.
Many soy milks are calcium fortified, and tofu that has been precipitated with calcium will also be a good source. Check the ingredient and nutrition label. The following link, Good Vegan Calcium Sources , has some good suggestions for non-dairy foods that contain calcium. None the less, some calcium is better than none. You should not rely on this information as a substitute for personal medical attention, diagnosis or hands-on treatment.