BTW... i dont have your answer but its 28 days not 20! ;)
You could just have a shorter cycle. Some women have a long cycle(over 28days) and some have shorter ones.
If your period comes every 20-21 days and stays for 5 days your cycle length is 25-26 days. That would not be considered irregular if your cycle length is relatively the same each month. You would ovulate roughly between days 11 and 13 of your cycle. Clomid could be a good way to start fertility treatment when you are trying to conceive but it would be advisable to discuss fertility treatment options with your doctor first.
Mice have a gestation period of 20 days. They can have 3-14 babies.
Generally day 14 is prime time. Yours might be between 14-20.
Wow girl, you're lucky! Your period comes about every 30 days? Mine is about every 20 days. I too thought that there was something wrong with my cycle, because it was only every 20 days and not at least 28 like most others', My doctor told me there's nothing to worry about. Every girl's period is different, and especially if you started your period less than two years ago, your cycle can be pretty crazy and can vary a lot. So once again, don't worry. If your period starts in less than about 18 days, or it starts in more than about 36, be sure to see your doctor about it.
A normal period is between 3-7 days with a gap of 15-20 days between periods. It varies from person to person as you may have noticed in the numbers, but if you are afraid your period is not right, you can contact a doctor. If you have just had your first period (or second, third or fourth), it is not unusual that you are not regular or have a "normal" menstruation period yet.
Nothing at all, it's normal. 28 days is the average menstrual cycle length - everyone is different so not everyone will have a 28 day cycle, also it's normal for cycles to change over time and for there to be a few days variation from one cycle to the next. If you go over 28 days then that simply means that your cycle is longer than the average menstrual cycle. Rather than expecting your periods every 28 days you should determine your own average menstrual cycle length. One menstrual cycle is the number of days from the first day of your period up until your next period, you add all these days together over your last 6 cycles and then devide by 6 to get an average. There are various apps for your phone or web sites that figure out your average menstrual cycle length for you. Take my cycles for example; July 25 (35 day cycle) June 20 (32 day cycle) May 19 (32 day cycle) April 17 (27 day cycle) March 21 (31 day cycle) February 18 (26 day cycle) So my average menstrual cycle is 33 days - as long as my periods fall within 26 to 40 days they are still regular. So you see my cycle is longer than 28 days, and there can be a little variation from one cycle to the next, this is totally normal and healthy.
can a women get her pirod after 20 days she get it a gain after sex
Generally, no. There have been cases when ovulation happened during a period and if that is the case, yes a pregnancy could develop. Most women will ovulated around day 14-20 of a 28 day cycle, so they wouldn't get pregnant 3 days after a period.
Yes, it is possible to get your period after 20 days when you normally get then after 28 days. The cause of your period coming early could be related to stress, certain medications, hormonal changes or a health condition.
20 days