Why is my morning sickness gone? :(

Priscilla • Mummy to 2 beautiful boys, ttc our 3rd this year but had 4 miscarriages, finally got another BPF in November and we are due our baby mid 2015 :)
After suffering 4 miscarriages this year, when I found out I was pregnant I was getting my hcg tested every week and everything was fine, I started morning sickness at 5 +3 weeks and at 6 weeks I had a ultrasound showing a healthy baby and heartbeat. But since yesterday im fine? No sickness and I feel great? :( also lots of cramping