So have you still not gotten a positive? Are the lines getting darker at all?
I don't think you are being silly...this ttc stuff is really depressing when it doesn't happen when we want it to...
My suggestion for you if you don't conceive this month would be to start charting while Robbie is away. That way you will be able to figure out if in fact you are ovulating and will give you plenty of time to "fix" the problem (if there is one) before he gets back.
I had to take a 4 month break from ttc while I was going through my treatment for the HPV and it gave me a chance to become a master charter...so I would say give it a try.
Don't worry, you seem to have been pretty fertile. I wouldn't think you will have to much trouble this time.
We are always here to talk if you need to