Week 2
Your baby is the size of a poppy seed
What's happening this week
Like week 1, you're still not technically pregnant during week 2 — but your body is racing toward the moment that changes everything. This is the week your reproductive system kicks into high gear. Inside one of your ovaries, a single follicle is emerging as the dominant one, growing rapidly and preparing to release a mature egg.
Your uterine lining — which shed during your period last week — is now rebuilding. It's thickening with blood vessels and nutrients, creating the perfect landing pad for a fertilized egg. Think of it like preparing a nursery before the baby arrives, except this nursery is made of tissue and blood supply.
As ovulation approaches (typically around day 14 of a 28-day cycle, though this varies), your body increases production of luteinizing hormone (LH). This LH surge is what ovulation predictor kits detect. Once the surge happens, ovulation usually follows within 12 to 36 hours. The released egg will survive for about 12 to 24 hours — a surprisingly small window. But sperm can survive in the reproductive tract for up to five days, which is why the fertile window is actually about six days long.
If sperm meets egg in the fallopian tube, fertilization occurs. A single cell forms — a zygote — containing all 46 chromosomes that will determine everything from eye color to whether your baby will have your nose. That one cell is the very beginning.
Your body this week
You likely feel completely normal this week — and that's because nothing outwardly dramatic is happening yet. Your period has ended, and you might notice changes in your cervical mucus as ovulation approaches. It often becomes clearer, slipperier, and stretchier — sometimes described as resembling raw egg whites. This is one of your body's natural fertility signals, making it easier for sperm to travel.
Some people feel a mild twinge or cramp on one side of their lower abdomen around ovulation — a sensation called mittelschmerz (German for middle pain). It's completely normal and harmless, though not everyone feels it.
This is the week to be intentional about timing if you're trying to conceive. Having intercourse every one to two days during your fertile window gives you the best chance. There's no need to overcomplicate it — no special positions or techniques have been proven to improve your odds. The most important factor is simply timing.
Continue taking your prenatal vitamin daily. Stay hydrated, eat well, and try to manage stress — easier said than done when you're hoping for a positive test in a couple of weeks, but your body functions best when you're taking care of it.
For dads
If you and your partner are trying to conceive, this is the week that matters most biologically. Ovulation is approaching, and the fertile window is opening. Here's what helps: don't put pressure on either of you to perform on a schedule. Stress can affect both desire and — according to some research — sperm quality. Keep things natural and connected. If your partner is using ovulation predictor kits, you might see them in the bathroom — ask about them. Understanding her cycle shows you're a partner in this, not a bystander.
One practical thing you can do this week: take a look at your own habits. Sperm takes about 74 days to mature, so the lifestyle choices you make now directly affect the sperm that could create your baby. Limit alcohol, avoid hot tubs and saunas (heat reduces sperm production), eat a balanced diet, and stay physically active. If you smoke, this is the best possible reason to quit. These aren't sacrifices — they're investments in your future family.
Common concerns
Is it normal not to feel any different this week?+
Completely normal. During week 2, conception hasn't happened yet — your body is simply preparing for ovulation. You won't feel pregnancy symptoms until after implantation, which is still about two weeks away. Most people have no idea that anything is different during this week.
How do I know when I'm ovulating?+
There are several signs: changes in cervical mucus (it becomes clear and stretchy), a slight rise in basal body temperature after ovulation, and a positive result on an ovulation predictor kit. Some people also feel mild cramping on one side. Tracking these signs over a few cycles can help you predict your fertile window more accurately.
Does it matter how often we have intercourse during the fertile window?+
Research suggests that having intercourse every one to two days during the fertile window gives you the best chance of conceiving. Daily intercourse is fine and doesn't reduce sperm quality in most cases. There's no need for special timing strategies — consistency during the fertile window is what matters most.
Can stress affect my ability to conceive?+
Extreme or chronic stress may affect ovulation and hormone levels, but normal everyday stress is unlikely to prevent conception. That said, the trying-to-conceive process itself can be stressful. If you're feeling overwhelmed, talk to your partner and your healthcare provider. There's no shame in asking for support early in the process.
Product picks for week 2
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Ovulation predictor kit
Detects the LH surge that happens 12-36 hours before ovulation — more precise than calendar tracking alone.
Fertility-friendly lubricant
Regular lubricants can slow sperm down. Fertility-friendly options are pH-balanced to support sperm motility.
Cycle tracking app subscription
Log symptoms, temperature, and cervical mucus to identify your fertile window with more confidence each month.
A quick note: This content is for informational purposes only and is not a substitute for professional medical advice. Always talk to your healthcare provider about any questions or concerns. Learn how we create our content.
Content based on guidance from the American College of Obstetricians and Gynecologists (ACOG), the American Academy of Pediatrics (AAP), Mayo Clinic, and peer-reviewed medical literature. Learn more about how we create our content.