The FDA recently updated their information about Plan B’s effects to make its operation clearer, noting that it stops fertilized eggs from implanting but does not cause abortions.

The FDA has also changed how they describe the pill’s efficacy for women who are overweight, which impacts how effectively the pill works. This change is significant because its success in helping overweight women will directly depend on it.

It can make you gain weight

Many women fear that Plan B will lead to weight gain; however, this is not the case. Though bloating may occur as a side effect of taking this pill, its side effects should not be dangerous or severe and should subside with time. Furthermore, no other adverse reactions were experienced while on Plan B; in fact it may even help with weight loss! To stay safe however it’s advisable to keep a record of your daily diet as well as any medications or supplements taken prior to beginning this treatment to avoid potential issues later.

Plan B can be purchased over-the-counter in any U.S. drugstore or retailer without needing a valid prescription, and will work up to 72 hours post unprotected sex to reduce chances of pregnancy by up to 85%. Unfortunately, it will not protect a person against sexually transmitted infections (STIs), HIV/AIDS and Hepatitis B; additionally it won’t work if already pregnant.

The pill can be an invaluable aid for women after failed abortion attempts or unprotected sexual encounters, so it is crucial that they understand its workings and limitations. A recent study has demonstrated that one popular form of emergency contraception, levonorgestrel 1.5 mg (Plan B Pill), loses effectiveness beyond certain weight limits – something which could become problematic given that American women generally weigh approximately 165 pounds.

Plan B is not your only option. There are alternative treatments such as Ella (ulipristal acetate), available from Nurx with a valid prescription, that provide more effective pregnancy prevention measures. According to FDA-approved forecasts, its new formulation should become available as early as 2020; its benefit should extend further than just those at greater risk, reaching people as young as 18.

Many women question if Plan B can cause them to gain weight, yet its use does not impact on weight or cause other negative side effects. But as taking more than once can increase risks of complications, it may be best to use it only as an additional method of birth control and always employ barrier methods when having sexual relations.

It can delay ovulation

The morning-after pill is an emergency contraceptive that can prevent pregnancy after unprotected sexual encounter or when other methods fail. It works by delaying ovulation, thinnining out the uterine lining, and stopping sperm from fertilizing an egg – but for maximum effectiveness take within 24 hours after engaging in unprotected sexual encounter – otherwise its effectiveness may decrease or even fail altogether! However, it should be noted that taking it later than this will reduce its efficacy; and may become less effective or ineffective if taken later or if vomiting shortly afterwards occurs after taking it.

Increasing body weight may reduce the effectiveness of Plan B as its active ingredient, levonorgestrel, acts to defer ovulation and stop sperm from fertilizing an egg, but doesn’t prevent implantation – which occurs when an embryo attaches itself to the uterine wall and begins growing without fertilization by sperm – known as an ectopic pregnancy and which is potentially life-threatening to both mother and embryo.

Researchers who initially conducted studies that brought Plan B pill to market used a small sample of women who had a BMI of 22 or lower for research, and discovered that its efficacy decreased more frequently among overweight individuals. Due to this finding, its manufacturer decided to adjust patient information packets to reflect that its effects may differ among obese patients.

Plan B’s effectiveness will depend on when and where in your menstrual cycle you take it, such as after unprotected sexual encounter or before you ovulate; its efficacy may decrease after already ovulating and using an online ovulation calculator to check. Still, Plan B can still be an effective method of contraception if taken at the right time and followed up on with pregnancy testing; it should never be relied upon as long-term birth control!

It can increase your risk of ectopic pregnancy

Plan B (commonly referred to as the morning-after pill) is an emergency contraception method designed to delay ovulation and stop sperm from fertilizing an egg, and so prevent pregnancy by delaying ovulation and stopping fertilisation of an embryo by sperm. While Plan B does not interfere with an already implanted pregnancy, its use may increase your risk of ectopic gestation – an extremely dangerous condition where an embryo implants somewhere other than its usual location in the uterus, usually attaching itself to Fallopian tubes – so women with prior history should seek medical advice immediately if using Plan B or experiencing symptoms ectopic gestation a second time around.

Women using emergency contraceptives containing progestin-only progestogens such as Plan B are at greater risk for ectopic pregnancy due to having no uterine lining to stop an embryo from implanting. According to Centre for Adverse Reaction Monitoring data, three reports have come in from women who had taken progestogen-only emergency contraception within 24 hours after unprotected sexual activity – though these cases cannot be proven as directly related to Plan B use.

Recent research suggests that Plan B (levonorgestrel ectopic contraceptive) doesn’t work effectively in overweight and obese women. Women weighing more than 165 pounds experienced significantly decreased effectiveness from taking this EC drug; on the other hand, Ella (ulipristal acetate EC) works effectively across weight classes.

Plan B can also make women’s periods heavier than normal and may lead to false positive test results for pregnancy or birth control, which could pose problems if trying for a baby or on birth control. Furthermore, in some instances it may cause irregular menstrual cycles that could be indicative of an ectopic pregnancy.

Many women fear that failing to use their birth control correctly or having it fail may put them at risk of an ectopic pregnancy. Unfortunately, however, this fear is unfounded: emergency contraceptives like Plan B or Ella do not cause such pregnancies directly; rather there are several factors which may increase risk; including family history of ectopic pregnancies, sexual activity outside the fertile window and having an underlying medical condition which leads to complications in your uterus.

It can cause breast pain

Levonorgestrel, a synthetic version of progesterone hormone, can quickly enter the bloodstream after ingestion and has various effects on both ovaries and uterine lining to stop pregnancy in various ways, including stopping an egg from being released and stopping fertilized eggs from attaching to uterus as well as stopping release of hormones that promote growth within uterine walls. It works fast.

Some women taking Plan B may experience pelvic pain and changes to their menstrual cycle as side effects; usually these are mild and will dissipate within several days. If these side effects become severe or persist for more than 24 hours, consult a healthcare provider immediately as severe abdominal pain could indicate an ectopic pregnancy, which is life-threatening condition.

Women who are overweight may be more prone to experiencing negative side effects from Plan B due to increased likelihood of forming fatty tissue on their bellies and buttocks, though weight gained is typically not as significant compared to slimmer individuals taking this medication.

Plan B may cause temporary spotting for several days following its use, although this does not signify that someone is pregnant – it could be confusing or cause their period to arrive several days late or early! Furthermore, future periods could arrive late or early depending on when or if this occurrence takes place.

Plan B may increase the chance of pregnancy depending on when in a woman’s menstrual cycle and her uterine size; its effectiveness decreases when close to ovulation occurs or if their BMI exceeds 35.

Plan B can be helpful for some women, but it’s wise to explore other options with your gynecologist before making your decision. If Plan B won’t work due to weight issues, discuss other emergency contraceptive methods like copper IUD. It provides five days protection after unprotected sexual encounter and is typically highly effective; low cost or free emergency contraception options may also be available from local Planned Parenthood clinics or reproductive health centers.