Pulled my groin doing Breastroke in Swimming?!

I felt something click near the top of my left leg when doing breaststroke. It suddenly hurt so I stopped doing breastroke and started doing freestyle (front crawl).

I then got out of the pool and it still hurts and it is hard to walk normally without feeling pain.

Do you think I have pulled my groin? Is there any way to help speed up my recovery?

Thanks!