Im 5 weeks in to my first pregnancy. In the middle of the night last night I was woken up with this sharp stabbing sensation on my lower left side (lower abdomen). It was really painful to the point that I had to sit up until it was gone and had to check for bleeding after! It lasted around 5 mins, there was no bleeding and there's been nothing since aside from the light on/off cramps I've had since implantation.It really frightened me at the time... has anyone experienced anything similar?