“Which is the best day to conceive a baby boy after your period?”

There is NOTHING in the medical literature that can tell you which day of the month of your cycle a male baby can be conceived. The only absolute way to have a specific gendered baby would be by AI of sperm that have been processed. By that, I mean that under certain circumstances semen can be place in a special media and allowed to "stand." Male sperm "Y" tend to "swim" faster across the media than "X" sperm. The "Y sperm can be collected and by AI placed into the womb, and there is a higher probability that a male fetus can be conceived. This is an extremely expensive method usually reserved for Royalties where the heir to a kingdom must be a male. Even still, there's no guarantees.

14 to 16 days after the first day of your menses (period)

While some believe in the timing of intercourse, and other factors, like sexual position and the pH of body fluids, to determine what might have an effect on which sperm reach the egg first, we believe that the true odds are still 50/50. Some patients do test their embryos if they have gone through IVF or INVOcell. The PGT-A test will tell you the gender of the embryo as well as if your embryos are chromosomally normal.

Unfortunately, there is no scientific evidence that certain days of the menstrual cycle are most conducive to conceive a child of a certain gender. The gender of the baby is formed based on genetic make up of the sperm( X or Y chromosome) not the female ovum. I would however encourage you to take your prenatal vitamins, maintain a healthy lifestyle and diet to promote a healthy pregnancy, in general. Good luck with your pregnancy attempts !

Some publications in the lay press advocate timed intercourse and diet as the two most common methods for preimplantation sex selection, but neither is effective. Sperm separation techniques other than flow cytometry are offered by some practices but are not reliable. The preimplantation techniques for sex selection best supported by evidence are (1) preimplantation genetic testing (PGT) to select embryos of the desired sex, followed by transfer of only those embryos, and (2) preconception sperm separation by flow cytometry (where available), followed by use of sperm with the desired sex for in vitro fertilization with or without intracytoplasmic sperm injection or in vivo fertilization via intrauterine insemination. Make an appointment with your OBGYN to discuss these options.

Can't reliably time it.