Startle Reflex

Claire
My baby just turned 3 months and still seems to have strong startle reflexes. Should I be worried? We swaddle him to sleep and if he breaks out of his swaddle (which he is now starting to do) he then wakes in the night 3-5 times instead of 1-2 times with the swaddle - I'm guessing because he startles himself. Any advice? He is not turning over yet but looks like he will be soon in tummy time so I'm concerned I will have to stop swaddling soon in any event.