Even though minimal vaginal bleeding lasting for a few hours is common during the first trimester, be sure to let your doctor know about it at your next visit. The Mayo Clinic recommends that if the bleeding lasts for more than 24 hours, contact your health care provider within the next day. If you experience heavy vaginal bleeding, severe cramps or pass tissue through your vagina, contact your doctor immediately, since these are signs of miscarriage.
https://www.modernmom.com/2c3c57d8-051f-11e2-9d62-404062497d7e.html
Sore muscles (especially in the arms, neck, or jaw) are common after childbirth. This is because of the hard work of labor. The soreness should go away in a few days. Bleeding and vaginal discharge (lochia) may last for 2 to 4 weeks and can come and go for about 2 months. Vaginal soreness, including pain, discomfort, and numbness, is common after vaginal birth. Soreness may be worse if you had a perineal tear or episiotomy.
http://www.webmd.com/parenting/baby/tc/postpartum-first-6-weeks-after-childbirth-recovery-at-home
Frequency of observation. Recommended frequency of observation is every 1-2 hours. The ability to perform this is based on staffing at your dairy. Once a cow/heifer in stage 2 of labor the frequency of observation should increase to every 30 minutes. It is important to see if the dam is making progress in that time or not.
https://www.cvmbs.colostate.edu/ilm/proinfo/calving/notes/whentocallforhelp.htm
Postpartum bleeding is generally much heavier than menstrual bleeding, however. Postpartum bleeding typically begins within hours after giving birth, and will continue for about two or three weeks after giving birth. For some women, postpartum bleeding may last for up to as many as six weeks after giving birth. Postpartum bleeding starts out as a bright red vaginal discharge. The postpartum bleeding generally stays bright red for anywhere from four to ten days after giving birth.
http://www.thelaboroflove.com/articles/how-long-does-postpartum-bleeding-last-for
At first, the flow of lochia will be heavy and bright red, and may have clots in it. Gradually, it will change to pink then brown, and eventually to yellow-white. You may bleed for as little as two weeks to three weeks, or for as long as six weeks after having your baby.
https://www.babycentre.co.uk/a553465/bleeding-after-the-birth-lochia
For most women, soaking through their usual pads every hour for 2 or more hours is not normal and is considered severe. Moderate bleeding means that you are soaking more than 1 pad in 3 hours. Mild bleeding means that you are soaking less than 1 pad in more than 3 hours.
http://www.webmd.com/baby/tc/vaginal-bleeding-after-delivery-topic-overview
Usually lasts 2-6 hours. If you do not notice any progression to stage 2 after 4 hours the cow/heifer should be examined to determine if there is a problem. Low blood calcium (milk fever), uterine torsion, or a calf in breech presentation can prevent the cow from going into Stage 2 of labor.
https://www.cvmbs.colostate.edu/ilm/proinfo/calving/notes/whentocallforhelp.htm
This will turn pinkish within a week and become white or yellowish after about 10 days. Lochia may last for 2 to 4 weeks and can come and go for about 2 months. Do not worry if you pass a few blood clots, as long as they are smaller than a golf ball in diameter. Use pads, not tampons, during this time. Change the pad at least every 4 hours to prevent irritation and infection.
http://www.webmd.com/baby/tc/vaginal-bleeding-after-delivery-topic-overview
Sometimes, bleeding that's much heavier than normal lochia happens. This is called postpartum haemorrhage (PPH). PPH may happen within 24 hours of giving birth (primary PPH), or between 24 hours and 12 weeks after the birth (secondary PPH) (RCOG 2009). It may be caused by a piece of membrane or retained placenta, or when your uterus doesn't contract down properly after you've delivered the placenta. Call an ambulance if:
https://www.babycentre.co.uk/a553465/bleeding-after-the-birth-lochia
During the first trimester, bleeding can occur frequently for many women. The American Pregnancy Association estimates that between 20 and 30 percent of pregnant women experience slight to moderate vaginal bleeding.
https://www.modernmom.com/2c3c57d8-051f-11e2-9d62-404062497d7e.html
how long should bleeding last after labor
Bleeding last for 2 to 4 weeks after labor.