Most people don't realize how hard it is to get pregnant - you have a very small "window" every cycle (not necessarily every month, but however long your cycle is)...less than 24 hours. Typically, it's once every 28 days - so, for example, if you stopped your period, two weeks after would technically be your day of ovulation, then if the egg is not fertilized, you have your period about 2 weeks alter. If you don't have sex on that particular day at the right time, you're not going to get pregnant & if you've been taking birth control pills, that can really mess up your hormones for a while - and it could be that those chemicals are not out of your system yet.
You would talk to your care provider that does your female exams (if you don't have one - really research for a good care provider that you would trust helping you make good decisions during pregnancy, labor, and birth - a midwife preferably). They can talk to you about your options in getting pregnant, homeopathic fertility options, other fertility issues...etc.
Basically, you would ask to talk to someone about getting pregnant and possible causes for not being able to, and what you can do as a healthy option to help.
Also remember that stress messes up your cycle and can cause you to not get pregnant.
M. D. B.
Esali Birth Childbirth Educator
www.esalibirth.com