Preseed worked for me the 1st time. I used it before, during and right after ovulation. I was 39 when I conceived.
Preseed worked for me for second pregnancy...good luck!
I used preseed once and concieved first try but I also knew i was ovulating too. That always helps if you know you're ovulating.
I used egg white once only. I did conceive that month. Basically I let the egg sit until it was room temperature, seperated it and used it much like lubricant. (I actually learned about it here). After doing some reading up on it I decided not to use it again as it is possible to get an infection from it. Salmonella I think. It wasn't worth the risk to me as preseed worked well for me as well. It did work for me though. Good luck!