You've been given three or four things to take. They don't all belong at the same moment.
Antenatal appointments hand over several supplements at once - commonly folic acid, iron and calcium, sometimes more - and rarely any guidance on how to fit them into a day. Most people take everything at breakfast, which is understandable and not always the best arrangement.
The reason it matters here more than with a general multivitamin is that iron and calcium compete for absorption, which is why antenatal routines often separate them. That's an organisational fact, and it's the main thing this page is for.
Everything about what to take and how much comes from your doctor. This page only helps arrange what you've already been given.
Iron and calcium are widely documented as competing for absorption, and guidance commonly places them at different times of day rather than together. The World Health Organization's antenatal guidance divides calcium across the day alongside a separate daily iron-and-folic-acid supplement.
Ask your doctor or pharmacist how far apart yours should be. They will give you a specific answer in a minute, and it is worth having rather than guessing.
In the first trimester the practical obstacle is usually not memory. Iron in particular is often hard to tolerate, and a routine that ignores that simply gets abandoned.
If something is making you sick, say so at the next appointment rather than quietly stopping it. There are usually options - a different form, a different time of day - and they can only offer them if they know.
You'll be asked what you're taking at nearly every appointment, often by someone who hasn't seen you before. A written list gets you a much better conversation than trying to remember brand names.
It also matters for anything you were taking before pregnancy. Bring that list too - decisions about continuing or stopping existing medication are specifically medical and shouldn't be made at home.
Worth saying plainly, because the wrong tool applied to the wrong problem wastes weeks:
They're commonly separated because they compete for absorption, and antenatal guidance often splits them across the day. Ask your doctor how far apart yours should be.
Tell your doctor or midwife rather than stopping. There are usually alternatives in form or timing, but they need to know it's a problem.
Consistency matters more than the specific hour for most people. Follow what you were told and pick a time you'll actually keep to.
That is a decision for your doctor, made individually. Don't stop anything on your own, and don't continue anything without checking.
Reminders on WhatsApp at each slot, so a routine that needs spacing doesn't collapse into one handful at breakfast.