How to tell....

How would you know if baby has dropped I feel like mines dropped yesterday as I been having bad pelvic pain and I'm waddling while walking I am 33 weeks and 3 days pregnant I am in the most uncomfortable pain ever by my vagina pelvic area it hurts to walk, get out of bed, turn during the night,sit on the toilet etc... Yall get the point lol but I am starting to wonder if baby has dropped on to birth canal and that's why my pelvic bones feel like they are ripping in half!!!