Читать книгу Dad's Guide to Pregnancy For Dummies - Sharon Perkins - Страница 44

Sperm can only fertilize an egg that’s mature, so you need to either have sperm waiting in the tube when the egg is released or get some there within 12 to 24 hours after ovulation, because that’s how long the egg can live.

Sperm (shown in Figure 2-2) live for at least a few days — up to five, in some cases — so having sex the day before ovulation, or even two days before, will usually result in live sperm waiting for the mature egg to arrive. If your partner is monitoring her ovulation, give it one more shot the day of ovulation.

Illustration by Kathryn Born, MA

FIGURE 2-2: Sperm are compact swimming machines.