Morning sickness has calmed down after 2weeks?

My morning sickness started at 5 weeks and i was severely ill with nausea and vomiting all day everyday for 2 weeks, but since yesterday it has randomly calmed down. I'll still wake up feeling a little sensitive and have the odd dry heave here and there but i no longer have that awful nausea feeling and am able to eat and i haven't puked in 2 days. Should i be concerned at all? Im 7 weeks, 3 days. No pain or blood whatsoever but im just worried as i thought morning sickness is at its peak around this time