Nausea on 2nd trimester

Carolyn • 1st time 🤰 & waited so long for our little blessing. Can't believe this roller coaster of emotions of 1st time moms. 😁
I'm on my 13th week. I felt that the nausea/MS has lessened a bit on my 11-12th weeks but when I started my 13th, it got more vicious. Plus, there are more headaches today. Anybody feeling the same?
I don't know if it's got something to do with the DHA/EPA capsule I was prescribed with. Because I only started taking it this week.