I'd been with my now husband for 5 years before we got married. I was perfectly happy and expressed clearly that I did not want to get married. I fell pregnant, and after I had our baby, he booked an appointment at the registry office to book our marriage without telling me. He then told me he had booked it and I made him cancel it but then he rebooked it and got very hot tempered when I challenged him about it.
He is from Asian culture, and he said that his Mum is not accepting us as a family because we are not married and because we have a baby, it is even worse. So I went ahead and married him... even though I love him to the bones, I just don't know why I didn't want to get married? I resented him for months after. Every argument, I always bring up that he was the one who forced me to marry him etc and he explicitly denies ever forcing me.
I still feel really upset that it has happened. I don't even remember our marriage anniversary! I only know the month and don't know until he gets me a card and flowers wishing us a happy anniversary 
I really resent his family for making him think that us not being married is a sin! I really do. I understand that's how their culture works, but I am obviously expected to follow it to keep everyone happy.