Feeling scared

I had a very early miscarriage in December. I would have been so early so I assume it was a chemical pregnancy? My last blood tests (2 days after the bleeding started) showed hgc levels of 4 and urine came back negative.

I think I might be pregnant again. I would have had a period in between. I am so scared! Was I stupid to get pregnant straight away? Am I more at risk for problems with the baby or another miscarriage?

I just feel so anxious :(