Late Period After Birth While Breastfeeding

Since you took the morning after pill multiple times within a month may have altered your menstrual cycle and caused a delay in your period. But there is still a possibility of pregnancy even if you have taken the morning after pill. Because emergency contraception is not 100% effective in preventing pregnancy, and repeated use of the pill within a short period of time may decrease its effectiveness.

While it's less likely to conceive right after having your period, it's still possible to become pregnant at any point in your menstrual cycle, including during the days immediately after your period. 
If you've had unprotected intercourse and missed a period, it's important to consider the possibility of pregnancy and take a pregnancy test to confirm.

From the information given, it is highly unlikely you are pregnant. Though, it is better to see the gynecologist for more in-depth evaluation and advise

It's completely normal for periods to be late sometimes even if you have used protection. Common causes could be stress, a change in routine, or hormonal imbalance. If you are concerned, wait a few more days and then take a home pregnancy test. Remember that irregular periods can happen but it is always good to get checked out just in case. 

In women, increased LH in urine is expected during the menstruation period. LH is a hormone that assists in the release of eggs from the ovaries. Following the end of your monthly period, the LH levels might increase as a way of preparing for ovulation. There can be changes in the cervical mucus throughout the cycle. Having lotion-like discharge before getting the sticky one is typical. 

A faint line on the pregnancy test can indicate an early pregnancy. The black of a line you are managing could be implantation bleeding when a fertilized egg sticks to the uterus. It is a common thing in the first three months of pregnancy and it's often nothing to worry about. Watch out for it and be gentle with yourself.

If your period is late, it’s okay to worry. Stress can throw off your cycle, causing it to be late or even completely miss it. Feeling tired or throwing up could also be symptoms of stress. If you took the morning-after pill and then got your period, you probably aren’t pregnant. It is better to wait a little longer and see if it comes. If your period still hasn’t shown up, take a test just to be sure.