brooke - hope the anti b's kick in soon. Hopefully once the UTI has cleared up you will feel a bit better. I don't think you need to panic about the lines. Stick your feet up with some hot chocolate and a good book, or a flm.
DizzyMerry I'm not sure but didn't want to leave you out.
Carlton - there is a good way of knowing when you ovulate although most people cringe at the idea. When your body get's ready to ovulate, the "os" which is the entrance to the cervix (you can feel it as a little dip in your cervix with your finger) begins to open, and at it's peak the os opens to around a pen's width.
Now the best way to see this is with a speculum and your partner can have a look for you, if your partner is too squeamish or really doesn't want to, then you can do it with the speculum and a mirror.
Me and my husband do our own artificial insemination because of fertility issues, so for us it's vital that he deposits his sperm sample directly on top of the os, using a syringe, so it's given a helping and, this is how we conceived our little one :-) It's not for everyone though lol.