Good friends of ours had trouble getting preggo until..... and this is gonna sound really weird but its true.....

The hubby had always worn 'whitey-tighties'. These keep the balls close to the body and warm/hot. Well heat kills sperm or at least makes em sluggish. He switched to boxers and let the boys hang free and cool and around the house he wore only boxers. Within a couple of months she was preggo! Odd but true.....

I hope its something as simple as that for you. *hugggs*

But don't stress out. Thats no good for either of you. Have fun trying. And try often.... sometimes its all a matter of timing. Gotta get his sperm in you at the right time. I wouldn't trust the predictor thingys too much. My mom-in-law had good luck taking her temp. though. She knows exactly when each of her children were concieved. For my hubby she called up my dad-in-law at work and said: 'Al come home for lunch'. Lol, 9 months later my hubby. He was a nooner.

Good luck!!
*hugggs*
teddy