Alright I got a question and it's a little TMI. I've been off of my birth control for two months now…

Alright I got a question and it's a little TMI. I've been off of my birth control for two months now because I'm trying to get pregnant again. The first time it was so easy to get pregnant and now it feels like it's impossible! I've looked online for tips and tricks and it says that it will take up to year to be pregnant and to have sex not too often and too less and right after to just lay there for 15 minutes. I've done everything I can think of! And what's worse is I'm suffering from PTSD from being pregnant with my first baby, I'll feel movements of a baby in my stomach so I'll ask my husband to get a pregnancy test and they all say negative 😞any advice on what I should do? I really hope it's not gonna take a year 😞