If you are using condoms and they have never come off or broken, then you can not be pregnant. As for what you said about consumating your marriage, I hate to tell you that anytime you have vaginal penetration by a penis, whether you are using a condom or not, you have consumated that relationship.
by not consumating marriage - I mean I'm still a virgin - you may read my previous posts to understand
You can't get pregnant if you're still a virgin. The only way to get pregnant (other than fertility treatments) is to have vaginal intercourse with a man and if his sperm fertilizes your egg. That is the only way it can happen. If you're a virgin, you can't be pregnant.