How fast does pregnancy go

Im 16 weeks pregnant with twin and we found out the gender one boy and one girl. We are so excited. It's weird now that I know the genders I can't stop watching labor and delivery videos and I wish they were full term and it was time for me to hold them. We tried to get pregnant for 4 years and I just want my little miracles in my arms and to breastfeed and cuddle and take a million pictures lol