2nd baby, 2 years apart

Hi I'm at 7 weeks currently. Just wondering, has any mummies ever felt "disconnected" from their baby during these early weeks? I felt the stretch, tingle, pull, cramps at 4 & 5 weeks, and when my 1st born son tap on my tummy, I could feel the hard bump. But from 6 weeks up till today, I feel like my tummy is "empty"? I am VERY worried as we don't plan to see any gynaes until at least 10 weeks. Also, at night I do still feel a bit of that pulling sensation in my tummy, and totally NO BLEEDING up till today with 2 lines still on any test kits used. Should I be very worried or is this extremely normal?