Okay, you're exactly where I was in my situation. Did they say what your blood levels were like?
The CVS does carry the slightly higher risk of miscarriage than the ammio but actually this is the national 1% risk - your actual consultant will most likely have a 0-1% statistic for their own procedures. I think my consultant had less than 0.5%.
The procedure itself is a little uncomfortable but you won't feel any pain. The first part is the scan to check baby's heart and position to make sure that it's safe to go ahead. They won't do it if baby isn't in an ideal position.
The anaesthetic is used to numb the area. Then a needle is inserted into the womb - I was warned that there was some discomfort to come as it passes through the wall of the womb but it's just a quick push so try not to worry. The needle is actually an outer tube for a smaller needle/probe. There's a specially trained midwife that accompanies the consultant who uses the second needle to break up the placenta cells. A small warning - I wasn't told how it was done so when she started wiggling it I had no idea what was going on. Mine took 3 goes to get enough fluid but as I knew what was happening it wasn't too bad.
The consultant scans the baby throughout the entire procedure to check for changes in position. I was able to see the procedure on the monitor which was reassuring. Then all equipment is removed and the only wound is covered by a tiny plaster. Then the consultant spent some time checking the baby's heartbeat and let me leave when she was happy. My DD was basically unaware that anything had even happened!
They might also want to take bloods following the procedure.
The only odd thing that happened to me was that I fainted in the hospital lobby but I think that was just because I got myself so worked up afterwards. I just came over all wobbly but was okay soon after.
Three days of absolute rest - then after 6 weeks (or was it 4?) the risk of related miscarriage was gone. I think this is a little extreme to have so much time tagged on the end - I would have thought that if the procedure had put any stress on the baby then it would be within the week.
Results were the next day and all clear. I felt like I shouldn't even have bothered with the test but I know I couldn't have kept going through the pregnancy without knowing.
I've tried not to gloss over anything or sugar coat. Like any medical procedure it's not something I'd choose to do to pass the time but I had an ECV at 38 weeks and I'd actually say that was worse!