Most contraception questions are really contraindication questions. Learn who cannot have estrogen and the rest follows.
Estrogen increases clotting. Every contraindication below is either a clot risk or a hormone-sensitive cancer.
Abdominal pain · Chest pain · Headache (severe) · Eye problems · Severe leg pain
Every one of those is a possible clot. This mnemonic is worth more marks than the method list.
| Method | Typical use | Key teaching |
|---|---|---|
| Implant / IUD | >99% | Most effective; nothing to remember. Copper IUD also works as emergency contraception |
| Sterilization | >99% | Consider permanent; counsel accordingly |
| Injection (Depo) | ~96% | Every 12 weeks; bone density loss — calcium, vitamin D, weight-bearing exercise |
| Combined pill / patch / ring | ~93% | Same time daily; estrogen rules above |
| Condom | ~87% | The ONLY method that prevents STIs |
| Diaphragm | ~83% | Refit after childbirth or big weight change; leave in 6 h after |
| Withdrawal / fertility awareness | ~77–80% | Least reliable |
An IUD or implant is more effective than sterilization on paper — but only condoms protect against infection. A woman with an IUD and a new partner still needs condoms. That is dual protection.
A 28-day cycle in two halves, with ovulation in the middle.
| Follicular (days 1–14) | Luteal (days 15–28) | |
|---|---|---|
| Hormone | FSH, then estrogen | LH, then progesterone |
| Ovary | Follicle matures | Corpus luteum forms |
| Uterus | Lining rebuilds | Lining becomes secretory, ready to implant |
Ovulation is triggered by the LH surge, about day 14. Menstruation begins about 14 days AFTER ovulation - that half is fixed, and cycle length varies in the first half.
The temperature rise confirms ovulation after it has happened, so it is poor for avoiding pregnancy but useful for achieving it.
Saved study graphics from your own collection. Each one is someone else’s work — check anything clinical against your course materials before you rely on it.
Start every conversation with one question:
“Would you like to become pregnant in the next year?”
Counselling is person-centred and noncoercive. The client chooses the method — or chooses no method. You make the choice informed, you do not steer it.
| Family | What it is | The hook |
|---|---|---|
| Fertility awareness | Track fertile days; avoid or use a barrier in the window | Needs consistent monitoring and predictable cycles |
| Barrier | Condom, diaphragm, cap, sponge, spermicide | Used at each act |
| Hormonal | Pill, patch, ring, injection, implant | Adherence and safety screening drive the teaching |
| Intrauterine | Copper or levonorgestrel IUD | Long-acting and reversible |
| Permanent | Vasectomy or tubal surgery | Treat as permanent — confirm certainty and consent |
Reassess immediately when any one criterion changes. Miss one and the method has stopped working.
Requires correct timing every single time, is less effective with typical use than most alternatives, and gives no STI protection.
This is not contraception.
Sperm reach the cervix within seconds. Douching does not prevent pregnancy and must never replace emergency contraception.
| Sign | How it is measured | What trips students up |
|---|---|---|
| Calendar | Standard Days Method is built for cycles 26–32 days | Irregular cycles make it unreliable |
| Basal body temp | Before rising, same time daily, with a thermometer | The rise happens after ovulation; illness and poor sleep skew it |
| Cervical mucus | Slippery, clear, stretchy — like raw egg white | This is the classic exam answer for “how do I know I am fertile” |
| LH testing | Urine kit detects the pre-ovulatory LH surge | Predicts ovulation; does not confirm it happened |
Fertility awareness = mucus + temperature + calendar. If an answer choice is not one of those three — feeling hot, mood swings, breast sensitivity — it is a distractor.
Black-box warning for bone mineral density loss → calcium, vitamin D, weight-bearing exercise. Return of fertility can take 9–10 months.
Progestin-only methods all share one headline side effect: irregular bleeding, heaviest early on.
| Copper | Levonorgestrel | |
|---|---|---|
| Duration | up to 10 years | 3–8 years by product |
| Hormone | none | progestin |
| Bleeding | heavier or longer at first | irregular early, then often lighter |
| Also | most effective emergency contraception | not used with current breast cancer |
Check monthly, after each period. Missing, longer, or shorter strings can mean expulsion or perforation — call the provider and use backup.
Placed more than 7 days after bleeding began? Backup for 7 days.
Seek care for severe pelvic pain, fever, foul discharge, very heavy bleeding, changed strings, or a positive pregnancy test.
Two myths exams love: IUDs are not restricted to people who have given birth, and fertility returns almost immediately after removal.
Tubal ligation is a roadblock, not a shutdown. Ovulation, hormones, and periods all continue — the egg is simply reabsorbed. Sperm can no longer reach the ovum because the tubes are blocked.
| Option | Window | Key points |
|---|---|---|
| Copper IUD | within 5 days | Most effective. Works immediately and keeps working as ongoing contraception |
| Ulipristal 30 mg | within 5 days | Better than LNG late in the window. Wait 5 days before starting hormonal contraception, then backup 7 days |
| Levonorgestrel 1.5 mg | ASAP, within 5 days | Better the sooner it is taken. Start or resume hormonal contraception immediately, then backup 7 days |
EC does not end an established pregnancy and gives no STI protection. No bleeding within 3 weeks → pregnancy test.