are very committed relationship. This needs mutual trust and care for each other. Males never get pregnancy symptoms except in rare type of animals. The symptoms are due to changes in the female body as the pregnancy advances. There are many chemical changes in the mother's body and internal environment. yes the father can be proved by DNA test, but only after the child is born. It can be done even before the birth of the baby, by taking some fluid from the uterus
, but with danger to the baby.