Advice please

#1stimemom #advicepls I'm currently 34 weeks and day 3 today. My both thighs are in pain I can't climb to the stairs 😔 though I can walk. Pero pag tatayo napo ako or uupo my thighs hurts and weak it feels like muscle cramps.worried napo Kasi ako please enlighten me mga mamsh☹️😔 nag message nako sa OB pero di pa sya nag rerespond what should I do?