I know exactly what you're feeling like. My fourth pregnancy was so different than the other 3. The only complication I had with #1 and 3 was PIH. None with #2. Then #4 comes along and at 17 weeks I start to bleed. No reason found. But when doing the ultrasound for the bleeding they find a cyst in the brain (can't remember what it is called). We had to see a specialist who thought the cyst was benign and would resolve. Baby grew to be big, was delivered 2 weeks early and was 8#13oz (I am only 5 ft tall). Had jaundice and a bili of 31 a week after delivery. Ended back in the hospital for 3 days. It goes on and on. The funny thing is she is the one who has given us the most problems from a behavioural standpoint also. If she had been a first child she would have been an only child. That must have been why she was given to us as our fourth. I just can't wait until she is a teenager