A normal cycle length is anywhere from 25 to 35 days from the beginning of one period to the beginning of the next. And it's normal for cycle lengths to vary a little bit, like one month it might be 28 days, the next month might be 30 days, and that's okay for it to vary a little. As for flow, it usually lasts about 4 to 7 days. And the heaviest flow is usually seen at the beginning of the period or during the first couple of days, and then the flow should taper off and go from bright red to pinkish/brownish, and then taper off to just normal white or tan discharge by the time the period is done, 4 to 7 days after it started. You asked specifically about heavy bleeding. What defines heavy bleeding, and when should you call your doctor? And this is a good question. If you are saturating a pad within an hour, or if you're having to double up on pads and tampons, so you're using 2 of each, or you're using both, or if you're having to change during the night, if you're passing clots larger than a quarter, or if you're bleeding for longer than 8 days, then these are all reasons why you should talk with your doctor. And there's multiple things that can cause heavy bleeding, so your doctor would ask you more specific questions about your cycles and about your health history and then determine if further investigation is necessary. Also call your doctor if you're having bleeding in between periods or if you're experiencing bleeding associated with intercourse. If you have more questions in the future for me, feel free to ask them at Intermountain Moms on either our Facebook or Instagram pages, and recommend us to your friends and family too.