Pregnancy after miscarriage.

Hey yall I've been on bc since I was 13. So almost 10 years now. I never tried to conceive but last November I found out I was expecting my first little bundle of joy. After dealing with the anxiousness of being pregnant I lost it only a week later after going to my first appointment and them finding nothing on my ultrasound. My first miscarriage was very hard mentally and physically with me. Since then I've had irregular periods and such weird mood and hormonal changes. I am almost terrified that I can't carry a child. I've also had chlymydia so can that have anything to do with it. I took the antibiotic that got rid of that but I'm still so scared that I can't conceive my own children