Haven't been there yet, but don't stress about it. Taking up to a year to conceive is absolutely normal, but sometimes couples hit that 4 or 5 month mark, start panicking and it hurts the relationship (plus stress messes with our hormones and can reduce chances of conception.)
Given your age, but no knowledge of any methods you may have used to postpone conception (and I don't need to know), I would suggest that you just allow enough time for your body to adjust to your intent, relax and do what comes naturally.
Conception might occur today, or it might take 6 months to a year, but remember its natural and obviously happens much more frequently than we might always like.
Getting pregnant isn’t easy for everyone. Some women have no trouble conceiving as soon as they decide they’re ready, but for everyone else, the process can be emotional and painstakingly slow. Even perfectly healthy and fertile couples only have a 25 percent chance of conceiving during each menstrual cycle, and that’s if they’re younger than 35. In short, getting pregnant can take some work, but there are ways to increase your chances. You might think that the more intercourse you have, the bigger the chance is, but you actually don’t have to over-do it, your best chances to conceive are two to three days before ovulation starts and throughout the day of ovulation. So try more during this window, and take a break later. Don’t get frustrated if it takes a long time to conceive, it’s perfectly normal. It will be worth the wait when it does happen. :-)
I, personally, would register with mymonthlycycles.com and track your period/fertility as a start. If you feel this is not working, maybe talk to your doctor after a few months of no success. I believe that you are generally fertile within 10-15 days of the first day of your period. Our family's been lucky and hasn't had any difficulty with achieving pregnancy (children). I wish you all the luck in bringing a little miracle into this world.
If you were on the birth contol pill prior to trying to conceive it may take some time for your body to get back into it's normal cycle again. I use to keep track of my periods on a calendar & during the week that I thought that I may be ovulating, I would begin to take my temperature by using a thermometer. When my temp was slightly higher than normal I would try & conceive during the 3 days around that time because your temperature will slightly increase when your ovualting but that was 25 years ago & now they have special thermometers that can detect when your ovulating. If your periods were not on a regular 21 day cycle prior to the pill, then it may be a bit harder to try & pinpoint the approximate time that you are ovulating. Right after we had sex I use to lay in bed for about a half hour & tuck a pillow underneath my bum to prop it up & let gravity do it's thing. The main thing is to try & not worry about it too much because stress can definitely complicate things also. I hope this was helpful! Good luck!