When I first started TTC, I started noticing every ache and pain and assuming that I was pregnant. It took me a while to realize a lot of little-known facts about TTC and pregnancy, so I thought I'd list a few of the things that helped me better understand what was going on with me and my body.
1) A lot of issues can prevent you and your partner from concieving. These can include but are not limited to: Women: PCOS, insulin resistance, anovulation, endometriosis, blocked fallopian tubes, poor uterine lining, poor CM, etc. Men: Low sperm count, poor motility, sterility, vericocles, hormonal imbalances, alcohol intake, infections
2) Even if both partners in a TTC couple are perfectly healthy and fertile, it could still take up to a year for them to concieve. If you have regular periods and are having regular unprotected intercourse, you still only have around a 25% chance of conceiving each month. Most reproductive specialists won't even see a couple until they've been actively trying for a year. However if you are aware of a problem that may affect one or both of your fertility levels, you can contact an RE for a consultation (these problems may be things like insulin resistance/PCOS, blocked tubes, previous cancers of the reproductive systems, etc.)
3) More times than you'll be able to count, people will say, "You are stressing way too much about this. Just relax and forget about it and you'll be pregnant before you know it. " Don't listen, this is a lie. Although it's true that you shouldn't over-stress about fertility or you will drive yourself crazy and become very anxious (and likely depressed) you should still make sure that you are educating yourselfon your options. Being actively involved in and concerned about your fertility helps you to be an vital participant in the process. By asking your doctor informed questions, it helps them realize that you are serious about concieving, as well as potentially helping them make a decision about what direction they should take you in that they may not have otherwise thought of.
4) Relax. I know I just said don't listen when people say that, but I'm not talking about forgetting about TTC I'm talking aboutenjoying it. For example, try not to make your partner painfully aware that you are "fertile" on certain days. If you know you are ovulating, just instigate a little bedroom time. If you pressure your partner and constantly remind them of the days you are and are not fertile, it will not only make them nervous, but it will make them think you are only interested in sex for baby-making purposes.