Born July 22 1979 and my partner in 1972,will our relationship last after our baby's birth in April?

Well, I think so. You may feel a little apart before your baby's birth due to your different personality, though you live happy life in most cases. However, after the birth of your baby, he or she will help you both get intimate. As long as you communicate more and bear each other upon daily trifles and conflicts, you will live for long.