Sore stiff hip

Samantha • Married to the love of my life. Healthy 1st baby (boy) 10/07/14 after a long road to pregnancy. Couldn`t be happier!!!!
So for the last couple days I have had an extremely sore and stiff left hip. Baby has had his head down for a while and it has been down diagonally towards my left hip. I don't know if it is just an accumulation of his weight pushing on it or if I have hurt myself but it hurts soo bad! Once I get up and move around it isn't as bad but if I stop
​Moving for even 2 mins it tenses up and I feel like my hip is going to give way under me. Any advice or remedies would be amazing! I am 34 weeks 3 days so don't know if
​It could be baby dropping?? X