I recently suffered a miscarriage and I am so worried I won't be able to conceive again. Has anybody faced the same issue and conceived after a while?

I had a miscarriage in January, the fetus was just 3 weeks and I didn't even know about it. My husband lives abroad. Last May 12, he came home for a vacation and we have been trying to conceive ever since. I am also afraid that it will come out as negative. 😔