In my case, I had the first wave of queasiness/acid reflux the day before my beta (10dp5dt). I thought it was nerves, but the next day I had a BFP. Of course, I also had cramps that morning and was SURE I was getting AF. So, it's just hard to tell. Truthfully, even for those of us who get a +, the symptoms we feel that early may be from the meds and not the pregnancy. Hang in there, and I hope your symptoms are a good sign.