Preeclampsia does not always end when the pregnancy does. It can start after the baby is born, and MedlinePlus, the patient encyclopedia run by the National Library of Medicine, says that when it does it is most often within 48 hours, and gives that version its own name: postpartum preeclampsia.
The part that makes it hard to catch at home is not the medicine. Every symptom on the list turns up with a perfectly good postpartum explanation already attached to it, and the explanation gets there first. The one thing that would separate them is a blood pressure number, and nobody has taken yours since you walked out of the hospital.
You will have a reason for it before you have the symptom
With my third, somewhere in the second week, I had a headache that ran two days. I did not experience it as a headache that ran two days. I experienced it as Tuesday being bad because of Monday.
There was an explanation ready for every hour of it. I had been sleeping in ninety minute pieces. I had gone from three coffees a day to none and then back to one. I had drunk a glass of water at some point and could not have told you when. Every one of those was true, and having four true explanations is not the same as having the right one.
It was nothing, in the end. I am saying that now because this is not a story with a turn in it. The part I want is not the ending. It is that I never checked, and the reason I never checked was that the answer had arrived before the question did.
One line sits in a box on the NHS preeclampsia page saying that sometimes it develops in the days or weeks after your baby is born. The rest of that page is written for somebody who is still pregnant. That is not a complaint about the page. It is a description of where you are standing when you read it.
You already have four reasons for a headache
The useful question at home is not whether you have a headache. Everybody has a headache. It is whether this one is doing something your explanations do not account for.
The CDC’s Hear Her campaign lists urgent maternal warning signs for pregnancy and the year after delivery, and it gives several shapes of headache. Three of them are worth carrying around: one that feels like the worst headache of your life, one that starts suddenly with severe pain, which the campaign compares to a clap of thunder, and one that lasts even after treatment with medication and fluid intake.
That third one is the one that does the work in a kitchen at midnight, because it is the only one of the three my four explanations could not have survived. Sleep is a treatment. Water is a treatment. If I had applied both and it was still there, then I had already run the experiment and I was standing in the results.
None of that occurred to me at the time. I thought of the water and the sleep as things I was owed, not as anything I was measuring.
Swelling is not the sign. The kind of swelling is
I could not get my wedding ring on for weeks after my eldest was born and I filed it under things that happen. Everybody I knew had swollen feet. Somebody’s mother had a story about her ankles. It was comfortably the least interesting thing about that month.
Which is why the CDC does not describe swelling. It describes what the swelling stops you doing. Hands swollen enough that it is hard to bend your fingers or wear rings. A face swollen enough that it is hard to open your eyes all the way. And underneath all of it, a line saying this is not like the usual slight swelling that most moms have.
MedlinePlus draws the same border from the other side, listing swelling of the hands and face among the symptoms and then noting that some swelling of the feet and ankles is considered normal. Feet were the whole basis of my confidence. Feet are the part nobody was asking about.
I have thought about that ring more than it deserves, and not because it meant anything, because it almost certainly did not. Because I had a piece of information sitting on my own hand for weeks and I had decided what it was before I ever looked at it.
Most of the time you do not feel ill at all
There is one sentence buried in all of this that quietly undoes most of what you are doing at home. It is nine words long, it belongs to MedlinePlus, and it goes like this. Often, women who have preeclampsia do not feel sick.
Sit with that, because it inverts the instrument you have been using. Feeling fine is not evidence of anything. It is the ordinary experience of the condition.
The NHS says the same thing from the front end. High blood pressure and protein in your pee are the early signs, and the page adds, without softening it, that it is unlikely you will notice them. That is the entire reason those checks are on a schedule instead of being left to how you feel.
At my last checkup after my third I remember the cuff going on and thinking, with something close to relief, that this was the last one. Not the last one for a while. The last one. I had a run of appointments behind me and I had started treating the sequence as a course I had completed rather than as something that had been keeping an eye on me.
That is the wrong idea about what those appointments are, and it is an easy one to arrive at, because they are scheduled the way a course is scheduled. They finish. The thing they are watching for does not finish on the same day.
Forty eight hours, and then six weeks
Two windows, doing two different jobs. MedlinePlus puts the peak first, saying that when preeclampsia appears after delivery it is most often within 48 hours. Then it extends the risk out to six weeks, and it attaches a sentence to that extension that appears nowhere else on the page. Postpartum preeclampsia carries a higher risk of death.
Six weeks is a number you have already met. It is stapled to the checkup, and it is stapled to how long the bleeding runs, which is a different subject and a different post. Meeting it here does something else entirely. In those other places six weeks is a finish line. Here it is a stretch of time during which nobody is taking your blood pressure.
The CDC’s range is wider again. Its warning signs are written for pregnancy and the year after delivery, which does not mean spending a year worrying. It means the calendar in your head, the one where the postpartum part ends on a particular date, is not in any of these documents.
I had a date in my head after all three of mine and it moved every time. After my eldest it was the six week appointment. After my son it was the first time I left the house on my own. After the baby it was the first night nobody woke up, and at twenty months that one is still outstanding.
The call is shorter than you are making it
With my eldest I opened every phone call with a sentence I had rehearsed, which was some version of sorry, this is probably nothing. I thought I was being considerate. What I was doing was handing over my conclusion before I handed over the facts, and then feeling foolish when somebody accepted it.
By the third I had dropped it, and not because I had become confident. I dropped it because it cost me thirty seconds and made the call worse.
The NHS box on this is one of the shortest pieces of guidance I have read anywhere. If you are pregnant or have given birth in the last few weeks and you have symptoms of preeclampsia, that is urgent medical help. It does not ask you to be certain. It does not ask you to rule anything out first, which is just as well, because ruling things out is precisely what you cannot do from a kitchen.
The same shape of mistake turns up when the thing you are trying to read is your mood rather than your body. The explanation arrives before the symptom there too, and it sounds every bit as reasonable. I have written about telling those two apart, and the honest answer there is the honest answer here. Somebody else is better placed to look.
The ones that are tonight, not tomorrow
What follows needs a frame around it before you read it, because it is not the top of its page and reading it as though it were will mislead you.
Above it on the NHS page sit the two signs that come first and that you will almost certainly not feel, the blood pressure and the protein. What comes after those is what the page calls the other symptoms, and it names seven.
- A severe headache that does not go away with simple painkillers.
- Vision problems, such as blurred vision or seeing flashing lights.
- Pain below the ribs.
- Sudden swelling of the face, hands or feet.
- Feeling very unwell.
- Heartburn that does not go away with heartburn medicines.
- Being sick, meaning vomiting.
Any of those can be serious and needs to be checked immediately, and the NHS says so directly underneath them.
Now read the list as somebody three weeks out. At least four of the seven describe an ordinary Tuesday. Pain below the ribs. Feeling very unwell. Heartburn. Being sick. I have had all four inside one week and been completely fine, which is not an argument for ignoring them. It is an argument for not being the person who decides.
The CDC is more specific about the vision one, and its version is easier to catch at three in the morning than blurred vision is. Flashes of light or bright spots, and blind spots.
The short version
- I am not the one who can tell. The thing that tells is a blood pressure reading and there is no cuff in this house.
- Every symptom on the list turns up with a reason already attached to it. The reason is the trap, not the symptom.
- If I have already treated it with sleep and water and it is still there, the treating was the test and it came back.
- Feeling fine is not evidence. That is the one I had backwards through three babies.
- The stretch that matters starts on the day the checking stops, and it runs longer than the calendar in my head.
Sources
- MedlinePlus Medical Encyclopedia, “Preeclampsia”, article 000898, U.S. National Library of Medicine (review date 16 April 2024)
- NHS, Health A to Z guidance on preeclampsia (page last reviewed 23 March 2026)
- Centers for Disease Control and Prevention, Hear Her campaign, “Urgent Maternal Warning Signs and Symptoms” (15 May 2024)
A note on this post. Written and edited by the NewBloom editorial team. NewBloom is not written by doctors, nurses or midwives, and nothing here is medical advice. We read the current guidance from bodies like ACOG, the CDC and the NHS and write down what it says, with every claim traced to its source and named in the sentence where it appears. General guidance is not the same as an answer about your own body. Your doctor, midwife or health visitor can examine you and we cannot, so anything here that raises a question about your own recovery is a reason to ask them. If something is wrong right now, contact your doctor or your local emergency number. More about how we write these posts.