I’m ovulating every month… so why am I not getting pregnant?

But I’m ovulating… shouldn’t that mean I can get pregnant?

Ovulation is definitely a good sign.

It means an egg has been released from the ovary and, for a short window, there is actually something there for sperm to fertilise. But that is only step one.

The sperm still has to reach the egg. The fallopian tube needs to allow that meeting to happen. Fertilisation has to occur. The embryo then has to keep developing, travel towards the uterus and eventually implant.

Every one of those steps has its own biology.

So you can ovulate perfectly normally every month and still have something further along the process making pregnancy harder to achieve.

Timing matters more than it seems

Even when you ovulate regularly, pregnancy still depends on sperm being in the right place at the right time.

An egg only stays available for fertilisation for a fairly short period after ovulation.

Sperm, on the other hand, can survive inside the female reproductive tract for several days.

That means your best chance is usually not just on the day you ovulate, but in the few days leading up to it too.

So if sex is happening slightly too early, slightly too late, or only once around the time you think you are ovulating, you can still miss the fertile window.

And the annoying part? Ovulation apps are useful, but they are still making an estimate.

And then the sperm still has to reach the egg

Ovulation can be happening perfectly normally, but pregnancy still depends on sperm being able to make the journey too.

There needs to be enough healthy sperm, they need to move well, and at least one needs to reach the egg and fertilise it.

And this is important because fertility is not just about the woman.

Male factors are involved in a significant proportion of couples who have difficulty getting pregnant, sometimes on their own and sometimes alongside a female factor.

So regular ovulation can tell us that one part of the process is working.

It cannot tell us what is happening on the other side.

The fallopian tubes matter too

For sperm and egg to meet, at least one fallopian tube needs to be open and functioning properly.

If a tube is blocked or damaged, the egg can still be released every month.

You may still have completely regular cycles. You may even have no symptoms at all.

But if sperm cannot reach the egg, fertilisation cannot happen on that side.

Things like previous pelvic infections, endometriosis or past surgery can sometimes affect the tubes without changing ovulation at all.

Fertilisation is not the end either

Even if sperm reaches the egg and fertilisation happens, pregnancy is still not guaranteed.

The fertilised egg has to start dividing properly and continue developing as it travels towards the uterus.

Some embryos stop developing very early, often before someone would ever know fertilisation had happened.

Others reach the uterus but do not implant.

So there are several steps between ovulation and a positive pregnancy test that we simply cannot see from the outside.

That is why having regular ovulation does not automatically mean that every cycle has progressed normally all the way to implantation.

And sometimes, there is no obvious reason

Sometimes ovulation looks normal. The sperm test looks normal. The fallopian tubes are open. And pregnancy still does not happen.

This is what doctors may call unexplained infertility.

And unexplained infertility means that the tests we currently use have not found a clear explanation.

Fertility involves a lot of tiny biological steps, and we still cannot measure every single one of them perfectly.

So when should you actually ask for help?

If you have been having regular, unprotected sex for a year without getting pregnant, it is reasonable to speak to a doctor or fertility specialist.

If you are 35 or older, many guidelines recommend seeking an assessment after around six months.

And you do not necessarily need to wait that long if you already know there may be something affecting fertility... for example very irregular periods, suspected endometriosis, previous pelvic infection or surgery, or concerns about sperm.

Sometimes the most useful thing is simply finding out which part of the journey needs a closer look.

Sometimes, it’s just about figuring out which part of the process might need a closer look.