Laying on your back

Iliana

I will be 17 weeks in 2 days and it's been a couple of weeks that I feel like I can't breath if I lay on my back, this is my second pregnancy and I am definitely bigger than I was with my first at this point. I have gained about 7 lbs but I feel like is too early for this! Is this happening to anyone else this early? I will be asking my doctor on my next appointment on Friday.