Figuring Out How Many Weeks – My Little Adventure
So, you got the news. Two lines. Or the doctor said “congratulations.” First wave is shock, excitement, maybe a bit of “oh crap.” Then, right after, the big question mark pops up: How many weeks am I, actually? Trust me, I’ve been there, done that, and got the t-shirt. It’s not always as simple as just knowing, you know?

For me, it started with the classic missed period. I wasn’t exactly a clockwork machine, so I waited. And waited. Then other little weird things started. I’m not going into details, but you know. Finally caved and got one of those pee sticks. The longest two minutes of my life, I swear. Then, boom. Positive. My brain just went into overdrive. Okay, pregnant. Now what? How far along is “this”?
The Great LMP Hunt
Everyone says, “Oh, it’s from your last menstrual period.” Easy, right? Wrong. At least for me. My memory decided to take a vacation right then. I sat there, trying to piece it together. “Was it before that awful movie night? Or after I bought those shoes?” I felt like a detective looking for clues in my own life. I’m not one of those super-organized types with charts and apps for everything. My system is more like organized chaos.
I eventually landed on a date that felt about right. Then, like any modern human, I hit the internet. Didn’t look for anything fancy, just typed in something like “how to count pregnancy weeks.” Up popped all these calculators. You feed it your LMP, and it spits out a number. Simple. Too simple, almost. Made me a bit suspicious, to be honest. Like, can it really be that cut and dry?
Doctor Time and the Ultrasound Sneak Peek
So, armed with my guesstimate, I went to the doctor. That’s the real first step, people. They asked the LMP question, of course. I gave them my slightly-less-than-confident date. The doctor did their thing, probably some quick calculation. They said, “Okay, based on that, you’re around X weeks.” Key word: around.
Then they mentioned the magic word: ultrasound. Not the big one where you try to guess if it’s a boy or a girl. An early one. A transvaginal one, which, let me tell you, is an experience. But that little blob on the screen? That’s where the real info came from. They measured it, and boom, a more solid gestational age. Turns out my LMP detective work wasn’t too far off! That was a win.

- First, total “what now?” moment.
- Then, the LMP memory olympics. Seriously, it was a mental workout.
- Played with some online calculator thingy. Took it with a grain of salt.
- Doctor visit was key. Ultrasound sealed the deal. That’s the proper way.
So yeah, that was my process. It’s a bit of this, a bit of that. You start with that LMP, which is super important, so try your best to nail it down. But really, the doctor and that first scan are what give you the solid answer. It’s not like some instant download of information. You gotta go through the steps. But hey, you get there in the end. And then the real counting begins, week by week!