Conceive plus or preseed?

Ashleigh • Engaged to my best friend and soldier. We have a 5 year old son, and currently ttc our second ❤️
I've heard about both and am determined to try one of these. Which are you trying, or which have you tried and for your bfp with? Also how long were you using before you got your bfp. Opinions and advice would be great ladies. Thanks 😉