Headache question (not currently pregnant)

When I was pregnant the first time, one of my biggest symptoms was a consistent headache (and I'm talking bad headache) for a total of 6 days..sadly I had a miscarriage and then they stopped. I was told it was normal with pregnancy and I expected to get them because my sister also got it bad when she was pregnant. It was one of the things that made me think. I was pregnant before I had taken a test. I'm wondering if when I get pregnant again, will I most likely get them again? Is it possible to not have them again but be pregnant? Or is it more likely that I would have it every time I'm pregnant if I did the first time. I just wondered if anyone else had them during early pregnancy once but not a separate pregnancy. I feel like if I don't have a headache this week I'm gonna convince myself I'm out before even testing..AF due 11/5