It usually shows up for women around 32 weeks and on I believe.

@mylittlemonkey13, oh I'm sorry. I didn't mean they would test specifically for it. They'll be keeping an eye out for it when they check your urine and your blood pressure. My brain is fried I swear. 🙄

Your information has helped me a lot, thank you so much! I will definitely do that when I lay down. One thing I do know is that I do not have a lot of caffeine(surprisingly) When will my doctor test me for preclampsia ? @levismom

You'll probably get tested for Preeclampsia soon too. I would talk to your doctor about it though at your next appt.

Your uterus is getting heavy with babe in it. So there's a main artery or vein that your uterus can pinch off when you're lying on your back. If you're going to lie on your back you'll want to prop yourself up with pillows. So that's the reason for when you're lying down. As far as sitting up, I'm not sure. I would pay attention to whether or not you've had caffeine or a lot of sugar when it happens. It's possible it's anxiety if you had an anxiety triggering moment.

This time I was laying on my back. Other times it happens when I am just sitting @levismom

Are you lying on your back or reclined when this is happening?