Need Advise

Aa

Hey Ladies I’m knew to this app

So I have two babies and finding impossible to get pregnant again 😞 I’m being trying for 12 myths my youngest is 13 myths my oldest is 2 after my oldest baby I got pregnant and had a miscarriage then got pregnant with my 2nd after 2 month trying now I am finding impossible to get pregnant. Im super worried as I got pregnant really easy before did this every happened anyone before please help