Better understanding

I am in college and about 8 months ago I had a miscarriage. Recently I hadn’t had a period since January 7, 2018 and then for May I was given medication to start my period, but just recently I started getting very sick at 4:00am actually it’s 4:14 am right now and I just got off of the bathroom floor, it’s been happening for about four days now is this a sign that I should probably take a test?