Trying to get pregnant

Hi lady’s so I have been trying to full pregnant for about 4 months now and nothing I have done the ovulation test but still nothing has anyone had this problem before? I’m stressing that will never get pregnant again I just don’t know if I should get a doctors appointment and have a talk about it. When I had my son he’s now 8 years old I tried for about 3-4 years to get pregnant and had a lot of testing but I don’t really wanna go though that again any information that can help please❤️