Insemination / Hormone stimulation / Hormone-stimulated cycle, step-by step

Hormone-stimulated cycle, step-by step

When we have received all your test results and hormone-stimulated insemination is considered to possibly increase your chances of becoming pregnant, we just wait for Day 1 of your menstrual period.

Is the first day when you have proper fresh bleeding by 12:00 p.m. Spotting up to the time of menstruation does not count. If your period starts after 12.00 p.m., it is the next day that is counted as Day 1 of your cycle.

On Day 1 of your cycle you should phone the clinic at +45 3257 3316 - or send us an email at In this way you are making us aware that you are ready to start your treatment, and we will ensure that you are given an appointment for an ultrasound scan on Day 2, 3 (or possibly 4) of your cycle before you start hormone treatment. 

We do a scan before your treatment to ensure that conditions are in order before we start. You should have shed the old endometrial lining, and your ovaries should be normal, i.e. there should be no cysts. Some women develop spontaneous cysts that are usually not dangerous and mostly do not cause any symptoms. They generally resolve on their own during the next menstrual period. As a rule, we cannot give hormone treatment if cysts are present and must, therefore, postpone treatment. Some women have minor permanent cysts that do not change and so, sometimes, such women can be treated. In other cases, we will perhaps to advise you to have a blood test before starting hormone stimulation.

Pergotime tablets or injections with FSH (Puregon, Gonal-F, Bemfola or Menopur) are used at StorkKlinik. These preparations increase the content of FSH (follicle-stimulating hormone) in the blood and stimulate the growth of follicles in the ovaries.

The size and number of follicles as well as the thickness of the endometrial lining is measured during the second scan in your treatment. Based on these measurements, we can generally calculate when we can expect the egg cell to be ripe for fertilisation and thus plan the time of the ovulation injection (Ovitrelle).

It can happen that a third scan is required before we can assess the time for giving the ovulation injection.

Treatment will be cancelled if there are more than 2-3 follicles that measure more than 14 mm - based on individual assessment. In special/individual cases, it will be possible to switch to emergency IVF treatment or have a follicle reduction (removal of follicles with a needle).

The time of ovulation is planned by giving an injection of an ovulation-stimulating hormone, Ovitrelle (or Pregnyl), which leads to ovulation about 36-40 hours later. Insemination is generally done 36 hours after the injection/right up to the time of ovulation.


Stork IVF Klinik | St. Kongensgade 40 H, 1. sal | DK-1264 Copenhagen K
Tel. +45 3257 3316 | Fax +45 3257 3346 | | CVR. No. 33 03 49 11


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