Weird thing happened last night

Lisa
Tmi... So I woke up twice last night with what felt like a flush of white discharge. By flush I mean it so much came out so quickly it kinda soaked my undies. It's never happened before. And I ovulated this week. Yesterday I had headache and cramps -all afternoon and then on one side for a good 30 min. Curious if this happened to any one before they found out they were pregnant.