I am into my 6 weeks of pregnancy. I had some brown stains underneath and do not feel any presence of the baby in me. I have seen my gynae in my 5th week and he could detect the sac/waterbag but not the bb heartbeat yet. Is this normal? Did anyone have any similar experience or insights into this?

It’s too early. A little bit of stain are called implantation... you don’t expect to feel the presence of the baby because it too small, for first time mother you’ll get to feel it mostly at 2nd trimester... for second time moms get to feel it earlier (this is because our body have alr experienced pregnancy) when it is too early, the doctor can’t detect yet... same like mine , but now I’m in my second pregnancy and last checkup (scan) can see my baby heartbeat, hands etc