If a woman has become pregnant during the menstrual cycle, she will not have her period by the end of week 4. There will be a delay in menstruation that will make the woman suspect that she may be pregnant. To check this, it is possible to do a pregnancy test two days after the delay so that it is reliable, that is to say, on the 31st day of the cycle.
Read the full article on: 4 Weeks Pregnant: Embryo Implantation in the Uterus. ( 53).
By Paloma de la Fuente Vaquero M.D., Ph.D., M.Sc. (gynecologist), Zaira Salvador B.Sc., M.Sc. (embryologist) and Marie Tusseau (invitra staff).
Last Update: 02/25/2019