TTC conceive questions..

So a little back ground before my questions. My husband and I got pregnant off of BC so our first little blessing came to us a little sooner then we were planning (which is totally great!). He just turned 2 and we decided to start planning for another one. We just barely started TTC at the end of Aug. This is my first time actually experiencing (suppose early) symptoms and noticing it. With our first I didnt notice anything except a week before I took a random pregnancy test I threw up out of nowhere at night but my period was also irregular at the time that I never knew when I was gonna get my period and now it is regular since I've had him. This time I'm looking for signs (which maybe bad haha) and i do know that the biggest sign is a missed period which my period is suppose to start on Saturday. I do know a missed period is the biggest sign but last week and even the week before I had a headache everyday, I was eating way more than normal, I was so grumpy all the time to my husband (which is not normal), I was extremely tired I would go to bed early but wake up at 9 or 9:30 everyday or I would struggle getting out of bed, I even had just the slightest cramps but TMI definitely slightest cramps while having sex, nipples have been sore, and I was bloated. Those symptoms left me last Thursday the 13th. I did take a pregnancy test this morning for fun but it was negative. The only symptoms I've noticed is I'm still bloated, I get a headache every once in awhile, we were at outback steakhouse on Saturday and I cut open my steak and the smell made me feel extremely nauseous I couldn't eat my steak but i am eatting a lot still. My question is that a GOOD or BAD sign that my symptoms come and go? And my other question is when did you start throwing up (if you did) was it before your missed period, after, or does it depend on how many weeks you are?