Thank you so much for this beautiful question.well ,just like you also said that it's all about what one beliefs,to me i prefer pregnancy before marriage because a lot are happening in this our present time and one needs to be sure of what you are about to go in with,to avoid had i known, because our women of today are not like before, were trusted before...
Alot of our women have done undoable in the name of money and material things..

How can I marry a woman before pregnancy, where we can not stand to defend our women nowadays no matter her age, father did trust her daughter anymore, likewise mother or brother you can't stand with boldness to defend a girl because their unknown secret is greater than their known no matter her age, so that is why I prefer to got her pregnant before getting married with her to confirm that she truly a woman and to believe that she really want to become a mother because not every woman want to be a mother ooh and some of them will not Open up and tell you this is what they want to be,they will allow you to suffer for a very long time before you will notice what they problem really are.i don't want to getting married with my fellow man in name of woman,.

Let me shock you,a friend of mine got married with a young lady and they have stayed for more than 4 years without having any children, and they have been going every where looking for solutions, drinking different harbs and going for medication both of them to know who is really having problems inside the two of them,but the results always show that both of them are ok, and they keep on praying to God and believe that one day God will remember them and this man has been spending money seeking for solutions not knowing that the wife is intentionally did not have to have a child for the man, until one day the man saw a drug inside her hand bag and he took it to the chemist store and and them please what could this drug be and what does it do in human body and the chemist look at it and told him that with this drug woman will never conceive,and the man shouted and narrated what he has been passing through for more than 4 good years in marriage.

So since then it's a very big lesson to me and I will never do the same mistake, I know that sometimes our decision may not be the best,but we can do our best  a human being.. and for those who may prefer marriage before pregnancy, please can you state your reasons why I should not got her pregnant before marriage let me see if you can convince me..