Because M/S is so different for each individual woman nobody can really tell you what your chances are for throwing up. My mom had no M/S at all with her two pregnancies. She felt great the whole time. In my case this is my first pregnancy and I've been diagnosed with Hyperemesis Gravidarum which is extreme sickness, nausea and dehydration. It showed up around week 7 and now at week 22 I'm still throwing up everyday and have been in the hospital several times for IV therapy. I'm not trying to scare you or anything I'm just pointing how different my mom's pregnancies were from mine.
I know what you mean by being a fighter though. I've gotten quite tough when it comes to holding back on throwing up but the pains usually get too much for me and I end up losing the "fight" sometimes.
You take care and I hope you feel better very soon!