Hey there, hun. All this stress. :(
In all honestly, my advice would be to leave this forum and check out this one: Fertility -
http://www.medhelp.org/forums/show/96.
I am not trying to get rid of you! But, for you, I think it would be an community of support for women in exactly the same situation as you -- trying to conceive. Some of them have been trying to conceive for years.
For most women, conceiving takes time. Do you know that if everything goes perfectly this cycle, you only have a 30% chance of getting pregnant, and that's if you have sex on your 2 most fertile days? If you have sex outside this window to your 5 medium-fertile days, your chances drop to 10%. Outside this, chances are 0. In fact, my doctor said he wouldn't even discuss fertility issues until I had been trying without success for 6 months.
It takes a strong couple to embark on this road, and you have to prepare yourself for patience. I know this is easier said than done - lol. I know you can do this though.
Check out the threads called "Women of Strength." There are so many supportive women on there who can be your cycle buddies on your two week wait (waiting to take your pregnancy test). They can give you advice on software, if you don't like the charts they have here.
It's just my advice - in fact, I was a member of that forum until I fell pregnant and headed over here. I will hold out hope for you this month, and feel free to do whatever you'd like. Of course, we'll miss you if you decide to go. I think you would benefit from joining a community in your same position. I think it would settle your fears a bit and give you the encouragement to thrive in however long your journey to conception takes you.
I think you should hold onto this though: look at the diversity on this board. We have women who fell pregnant easily, all the way to women with a longer journey who accomplished it via IVF.
The point is, we all ended up here, pregnant! And you will too!
My heart goes out to you and I hope this helps, sweetie. Best of luck no matter what you decide!