I began feeling mine at 14 weeks, too! 15 weeks it was like a little flutter of taps, 16 weeks it came more often and I realized it was definitely for sure not gas lol. 17 weeks I felt distinct movement from the left to the right, like a mouse or something was running around lol. I'm 18 weeks now and its fluttery thumps, heavier and very obvious now. I feel it several times a day most days. Baby seems to favor the right side. XD
Yes it is possable it is the baby. I remeber when I first felt my daughter move it felt Like a little flutter in my stomach almost like butterflys flying around. Mosly at night when I was still and relaxed. So dont worry. Your not the only one who didnt know what it was. I was alittle uneasy when mine first stared moving. But it became enjouable fast.