


Revised 7/6/2026
Published 7/6/2026
Female fertility and its examination
Felicitas offers expert assistance in investigating female fertility. Examinations and treatment are always planned individually.
Male fertility and its examination
At Felicitas Mehiläinen, we offer expert support and comprehensive examinations for questions related to male fertility.
During ovulation, a mature oocyte is released from an ovarian follicle. Ovulation is preceded by a rise in oestrogen, and ovulation itself is triggered by a sudden surge in luteinising hormone (LH). Follicle-stimulating hormone (FSH), in turn, supports the maturation of the ovarian follicle.
After ovulation, the cells of the follicle form the corpus luteum, which produces progesterone and prepares the mucous membrane of the uterus for a potential pregnancy.
The most fertile window is usually 1–2 days before ovulation and the day of ovulation. Ovulation typically occurs 12–16 days before the next period, meaning that in a 28-day menstrual cycle, it falls around cycle days 13–15. However, individual variation and variation between cycles are normal.
Ovulation is a prerequisite for pregnancy, as fertilisation does not occur without the release of an egg. Sperm can remain viable for fertilisation in the female body for up to 3–5 days, whereas the egg usually remains receptive for about 24 hours after its release. Therefore, timing intercourse 1–2 days before ovulation and on the day of ovulation offers the best chances of achieving pregnancy.
The timing of ovulation can be assessed using several different methods, such as calendar tracking, an indicative ovulation calculator, and observing bodily sensations. Urine LH tests, or ovulation tests, can also help identify the timing of ovulation. The LH surge is usually visible on the test 24–36 hours before the release of the egg.
If necessary, the occurrence of ovulation can be assessed at an appointment, for example, using an ultrasound scan and blood tests.
Many factors can affect ovulation function. These include, for example:
Ovulation function and general fertility can be supported by taking care of everyday routines, sufficient sleep, balanced nutrition and an appropriate weight. A good therapeutic balance of primary diseases is also important.
It is worth investigating ovulation function if the menstrual cycle is irregular, ovulation seems to be absent, or pregnancy does not occur after 6–12 months of trying. You can also book an appointment if you are concerned about your fertility or want to check ovulation function before trying to get pregnant.
A gynaecologist or an infertility specialist can assess the situation and, if necessary, determine whether ovulation occurs normally. A fertility check-up is an option when you want information about your fertility or if something about your fertility is on your mind.
co-parenting
Co-parenting parenthood makes it possible to have a child in a situation where both parties wish for a child without a romantic relationship.
Female fertility and its examination
Felicitas offers expert assistance in investigating female fertility. Examinations and treatment are always planned individually.
Fertility treatments for female couples and single women
Infertility treatments for female couples and single women are carried out with donated sperm, either through insemination or in vitro fertilisation t
In vitro fertilisation (IVF)
Are you considering IVF treatment? Felicitas Mehiläinen offers comprehensive IVF treatments, expert support, and a clear treatment path.
Male fertility and its examination
At Felicitas Mehiläinen, we offer expert support and comprehensive examinations for questions related to male fertility.
Maternity clinic
At Felicitas Mehiläinen’s maternity clinic, you receive individual and safe pregnancy follow-up so that you can look forward with peace of mind and th
Ovulation can feel like a short-lived twinge or one-sided lower abdominal pain. Cervical mucus becomes clear and stretchy. In some people, basal body temperature rises slightly. Not everyone has symptoms – being asymptomatic is common and does not rule out ovulation.
Mild, short-term lower abdominal pain at the time of ovulation is common. If the pain is severe, prolonged, or accompanied by fever, nausea, or abnormal bleeding, seek an assessment – it may be due to another reason that is good to rule out.
They can. Early pregnancy symptoms, such as breast tenderness or mild lower abdominal sensations, can resemble ovulation symptoms. A pregnancy test (urine hCG) confirms pregnancy at the earliest about 10–14 days after ovulation.
Yes. The timing of ovulation can vary from one cycle to another even when the menstrual cycle is usually regular. For example, stress, illnesses, changes in weight, and changes in life situations can affect the menstrual cycle and the timing of ovulation.
Ovulation and menstruation are interrelated, but menstrual bleeding does not always mean that ovulation has occurred. Ovulation can also be missed due to hormonal changes, for example. If the menstrual cycle is irregular or periods are absent, the functioning of ovulation can be investigated during an appointment if necessary.
To avoid ovulation disorders, a woman planning a pregnancy should avoid unnecessary use of anti-inflammatory drugs. Ovulation has been found to return to normal immediately after discontinuing the medication.
If a strong anti-inflammatory drug must be used continuously, it should be avoided for at least a few days around the time of ovulation.