virgin to trying

I have a beautiful almost 4year old boy . Who was my second pregnancy. Both were not planned , first one was when I was very young (16) but to the same partner. We chose not to carry out the pregnancy. Which I'm not going to say mistake but I have suffered from depression since . Now almost  25, I want another child ! I had the jadelle implant removed 3 months ago . And since my first pregnancy I have gained over 40kg :( I am in a much better head space now just to add but the weight is still there .