32 weeks 3 days pregnant and I've been having round ligament pain, but tonight I started to feel pressure 'down there'. It's gradually become worse, the only relief I feel is when I lay down. I went to the bathroom and it almost felt like my body was trying to push. I'm not having contractions and I can feel baby moving like normal. Any advice? Should I be worried? I've also been really out of breath.

Edit: My husband just pointed out also that my stomach feels very firm.