 [ Symptoms ] when is the best time to conceive [ Disease ] when am i likely to conceive what days should i have sex these are questions i get asked almost on a daily basis in the office the quick answer is the days right before and including the day you ovulate the natural follow up question is when do you ovulate there are lots of tools you can buy to help you predict ovulation but let is talk about the low tech answer most women ovulate 2 weeks before their next period starts so you have to look backwards every month if my period starts today i can be fairly sure i ovulated 2 weeks ago if my cycles are regular and i can guess within a couple of days when my next cycle is coming i can predict when i will ovulate this month as well first you want to look back over your last few month and see how long you cycles last we count from the beginning of one cycle to the beginning of the next cycle it is very important to include the number of days you bleed in this number or the count will be wrong so what did you get most of us will get a range for example 26 28 days or 28 to 30 days now take that number and subtract 14 for example if i had 26 28 days i subtracted 14 and now i have 12 14 days so most months i will ovulate somewhere between cycle days 12 and 14 cycle day 1 is always the first day you begin bleeding that month to summarize if my cycles are 30 days long i ovulate on day 16 if 32 days long then ovulation on day 18 if 24 days long ovulation on day 10 since we are most fertile the days leading up to ovulation in my example of ovulating between days 12 and 14 i would want to have sex more frequently beginning around cycle day 7 but especially around days 10 through 15 how frequently between days 10 and 15 at least every other day but even daily would be fine no worries about decreasing fertility by having intercourse too frequently for most men but be reasonable we do not want this to become a chore 