Worried even after talking to doctor

Autumn • Mommy to Bentley, and Rylee Ann on her way. ❤️
So I miscarried last Thursday at 5 weeks, I talked to my family doctor today who told me he doesn't think I need tested for any problems and that I should continue with my prenatal vitamins and wait until after one full cycle before ttc again. He says since I'm so young and it was my first pregnancy that everything should work out fine next time. I'm still worried that something is wrong with my body. I'm only 20 and it was my first pregnancy that I lost. Will I go on to have a normal pregnancy after this? I'm so nervous but really wanna ttc again and so does my husband.