Baby positioning 19 weeks

Lisa
Anybody else feel like baby is SUPER low? I went to the doctor on Monday and he found the heartbeat way down on my bikini line. And my "frequent urination" has gotten worse in my 2nd trimester, not better. Makes me wonder if baby is sitting on my bladder. I have a totally normal-looking 19-week bump though, which makes me wonder what's in that bump if it's not the baby lol. Anybody else have this? Or any other weird positioning?