Pregnant right after a miscarriage

I had a complete miscarriage on 26th Oct 2018 and didn’t have my period after that about a month and half. I did upt test at home and it was positive. A week after, I went to kk for ultrasound and it shows my little bean with a heartbeat about 7 weeks 4 days. So now i’m at 9 weeks and having a heavy morning sickness. All i can do is lying on the bed. Is there anyone who has the same situation with me? Pregnant right after a miscarriage? Without having one or two months period Because i’m scared and still trauma