Why am I panicking???

So, I had my son in august of 21’. I had a chemical the month before that. Both months we tried we immediately fell prego.

Well now here I am in 23’ wanting baby #2. Last month I tried and took the progesterone following ovulation ( as it was determined that the chemical pregnancy occurred due to low progesterone)

I’m panicking because I didn’t fall prego right away like with my son. Furthermore I’ve had some family say stuff relating to the covid shot and suggesting it causes infertility ( which I know is a myth) but like I can’t knock the feeling. Idk. Am I crazy? I’m currently 2dpo and have already like told myself I won’t get pregnant :(