Can taking Plan B with Ella counteract each other?

Q. Can my being overweight affect the effectiveness of Plan B in preventing pregnancy?

Answered by
Dr. Reetika
and medically reviewed by iCliniq medical review team.
This is a premium question & answer published on Jul 25, 2022

Hello doctor,

I took a Plan B; however, I read online that it is not as effective on heavier women. I want to know if I can still take an Ella pill even though I already took a Plan B? I heard Ella is more effective, and I want to know if there is a problem with taking both since I have heard that they can counteract each other.



Welcome to

I fully understand your concern and will surely help you. Emergency contraceptive pills are hormone-based pills that act at three different stages to prevent pregnancy. Firstly, they prevent the release of eggs from the ovary; if the egg was already released before the dose, they prevent fertilization of the egg further again; if the egg was fertilized before the dose, it prevents implantation of the egg in the uterus. So, it protects against unplanned pregnancy at three different stages and is considered better effective when taken at the earliest post intercourse. Please tell me how soon after the intercourse you have taken Plan B (Levonorgestrel)?

Further, all these pills are hormone-based; now, taking one more pill unnecessarily interferes with your menstrual pattern and flow. Tell me, when was your last period? Are your periods regular? When was the intercourse? Do not worry; you are 99 % protected, and taking a pill now may not give you any additional protection but will lead to excess hormones in the body, so not required. Pregnancy is a complex process and needs a sperm to fertilize an egg. The egg may or may not be available depending on the ovulation pattern of the female; the egg, if successfully fertilized, needs to be implanted in the female's uterus. So, getting pregnant is a complex process and needs many things to go right, so don't worry. Despite couples trying, 25 % only get pregnant.

Hello doctor,

I took the Plan B about two hours after intercourse; we had intercourse during the last and first weeks of June and July, respectively. My periods tends to be normal.



Welcome back to

If your last period was in the first week of July, and you have 28 days cycle or maybe more than 25, then most likely, you would not have ovulated during that time. There was no availability of eggs and hence no possibility of pregnancy. Further, even if the egg was there in a rare case, you took the emergency contraceptive pill in time, which is the best thing you could have done. So do not worry there would not be any likelihood of pregnancy, and there is no need to take any more pills. Further, let me advise you about the common side effects of the pill; there may be light nausea, fatigue, and slight bleeding in the next ten days or so. You need to count your next period from that day.

Do not worry.

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