Hi BJRose & Feeb, thanks for your replies.

Feeb, my BP before preg was always around 120/80. I also had a scan to check the placenta at 37 weeks. There was a small amount of calcification (which I am told is quite normal) and blood flow to and from the placenta also appeared normal.

Thanks for the advice. I will keep an eye on my BP. Hopefully it sorts itself out.

Tamara