The short explanation
Many methods cause changes in the first three months — irregular spotting, tender breasts, headaches — that settle on their own, and stopping early is the commonest reason a method is judged to have failed when it might have suited. Three months is the usual advice before deciding. Some effects are not waiting-out material: a severe headache unlike your usual, calf pain or swelling, chest pain or breathlessness, yellowing of the eyes, or a mood change that is frightening you. Those mean contact a clinician now rather than at the next appointment.
What depends on your situation
The parts of this that change from woman to woman. Uncertainty is stated, not hidden.
- Which effects are likely depends on the method. Bleeding pattern changes are expected with progestogen-only methods; the cardiovascular warnings belong mainly to combined methods containing oestrogen.
- Disliking a method is a sufficient reason to change it. There are enough options that living with something you hate is rarely necessary, and you do not need to have tolerated it for a set period first.
What this answer cannot determine
The boundary of online education. These need a clinician who can see you.
- This cannot tell you whether a symptom is from your method or something else, or which alternative would suit you better. Both need a clinician who knows your history.
Questions for your clinician
Take these with you. You can add any of them to an appointment card.
- Is this expected with this method, and for how long?
- What would make you want me to stop it?
- If I change, is there a gap where I would not be protected?
- What else would you suggest, given what has bothered me?
When to seek help
Clinician-approved guidance for this topic. When in doubt, being seen is never the wrong choice.
- Stop and seek urgent care for calf pain or swelling, chest pain, breathlessness, coughing blood, a sudden severe headache, weakness or numbness on one side, or sudden visual loss.
Sources
The evidence this explanation is built on.
No sources recorded yet.
Who wrote and reviewed this
Every AskHer answer names its author. A clinically reviewed answer also names the clinician who signed it off — if no clinician is named below, it has not been clinically reviewed.
- Author
- AskHer Editorial AskHer's editorial team — not an individual clinician Works in English, தமிழ், हिन्दी
- Clinical reviewer
- Nobody yet No clinician has signed this answer off. That is what the “Editorially reviewed” badge means, and why it does not say “Clinically reviewed”. It was written and checked by AskHer’s editorial team, and it is queued for a clinician who works in this area. No sources are recorded against it yet.
- Review status
- Editorially reviewed
- Last reviewed
- Last reviewed 26 September 2026
- Version
- 1
Correction history
Substantive changes are listed, not quietly edited away.
No corrections have been made since this answer was first published.
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