I can appreciate that you're worried. Take a deep breath... relax. I'm going to address several points, which basically back up why I say you aren't pregnant.
First, it doesn't matter what day your period usually starts. Your period is considered on time as long as it starts sometime during that 7 days your ring is out. It is entirely irrelevant- your period could start on the last day, right before you put your ring in, and it's still considered right on time. So, don't freak out about this part.
Second, it's totally normal to completely skip a period once in a while when you're using hormonal birth control. As long as you've been using it correctly (in your case, inserting your ring on time and not removing it during that 3 weeks it's in, and not leaving it out for more than 3 hours if it falls out) then you have no reason to suspect you're pregnant. Your pamphlet will say this specifically, and that you don't need to test unless you miss 2 periods in a row.
Third, sperm aren't little superheros in capes and tights. They don't fly, and they don't crawl. You would need your partner to ejaculate directly onto your vagina to get pregnant without him ejaculating inside you. Sperm can't travel across dry skin, and need fertile cervical fluids to travel through. You can't get pregnant from him ejaculating on your back.
Fourth, I just spent a half hour or so researching gastric bypass and increased fertility. From what I can tell by looking at medical studies, gastric bypass doesn't increase fertility in women across the board. Instead, it helps reverse the lowered fertility woman have from PCOS. If you don't have PCOS, I really doubt your fertility has increased significantly. That's not something to worry yourself over.
Fifth, your body can't just spontaneously get pregnant at any point in your cycle. It takes around 2 weeks with specific hormones in your body for an ovary to produce an egg to fertilize, and the Nuvaring prevents your ovaries from doing that by suppressing those hormones. The ring basically tells your body "hey, we already did the egg thing. Now we're just waiting for a period, so chill for a bit."
So, the week of your period your body has the exact opposite hormones of those needed for you to get pregnant. This is why you don't get pregnant during the week of inactive pills or having your ring out.
Finally, it is point blank impossible to miss a period because of sex three days prior. Getting pregnant is a process that goes like this: you ovulate, and the egg is fertilized while it's in the fallopian tubes. Then, once that egg is fertilized, it has to travel down the fallopian tube into the uterus where it implants. That journey can take from around 8 days to two weeks.
Prior to implantation, you aren't pregnant. The fertilized egg doesn't start putting out the pregnancy hormone that tests look for until it's been implanted for a few days. This is why pregnancy tests aren't active until at least 2 weeks after the sex in question- because even if you were to become pregnant from the sex in question, it would take at least 2 weeks for the pregnancy hormone to begin being released and build up to a level that it can be picked up by a test.
This is also why we suggest women not bother testing until at least two weeks after the sex in question, because even a blood test can't pick up hormones that aren't there yet.
So, to sum up- you used three methods of birth control with no failure of any of them, you probably aren't any more fertile than the next person (and don't need extra backup for that, although I definitely support you using multiple methods for your peace of mind), and your hormones are exactly opposite to what you need to get pregnant.
I feel extremely confident saying you aren't pregnant. I hope this helps!
First, it doesn't matter what day your period usually starts. Your period is considered on time as long as it starts sometime during that 7 days your ring is out. It is entirely irrelevant- your period could start on the last day, right before you put your ring in, and it's still considered right on time. So, don't freak out about this part.
Second, it's totally normal to completely skip a period once in a while when you're using hormonal birth control. As long as you've been using it correctly (in your case, inserting your ring on time and not removing it during that 3 weeks it's in, and not leaving it out for more than 3 hours if it falls out) then you have no reason to suspect you're pregnant. Your pamphlet will say this specifically, and that you don't need to test unless you miss 2 periods in a row.
Third, sperm aren't little superheros in capes and tights. They don't fly, and they don't crawl. You would need your partner to ejaculate directly onto your vagina to get pregnant without him ejaculating inside you. Sperm can't travel across dry skin, and need fertile cervical fluids to travel through. You can't get pregnant from him ejaculating on your back.
Fourth, I just spent a half hour or so researching gastric bypass and increased fertility. From what I can tell by looking at medical studies, gastric bypass doesn't increase fertility in women across the board. Instead, it helps reverse the lowered fertility woman have from PCOS. If you don't have PCOS, I really doubt your fertility has increased significantly. That's not something to worry yourself over.
Fifth, your body can't just spontaneously get pregnant at any point in your cycle. It takes around 2 weeks with specific hormones in your body for an ovary to produce an egg to fertilize, and the Nuvaring prevents your ovaries from doing that by suppressing those hormones. The ring basically tells your body "hey, we already did the egg thing. Now we're just waiting for a period, so chill for a bit."
So, the week of your period your body has the exact opposite hormones of those needed for you to get pregnant. This is why you don't get pregnant during the week of inactive pills or having your ring out.
Finally, it is point blank impossible to miss a period because of sex three days prior. Getting pregnant is a process that goes like this: you ovulate, and the egg is fertilized while it's in the fallopian tubes. Then, once that egg is fertilized, it has to travel down the fallopian tube into the uterus where it implants. That journey can take from around 8 days to two weeks.
Prior to implantation, you aren't pregnant. The fertilized egg doesn't start putting out the pregnancy hormone that tests look for until it's been implanted for a few days. This is why pregnancy tests aren't active until at least 2 weeks after the sex in question- because even if you were to become pregnant from the sex in question, it would take at least 2 weeks for the pregnancy hormone to begin being released and build up to a level that it can be picked up by a test.
This is also why we suggest women not bother testing until at least two weeks after the sex in question, because even a blood test can't pick up hormones that aren't there yet.
So, to sum up- you used three methods of birth control with no failure of any of them, you probably aren't any more fertile than the next person (and don't need extra backup for that, although I definitely support you using multiple methods for your peace of mind), and your hormones are exactly opposite to what you need to get pregnant.
I feel extremely confident saying you aren't pregnant. I hope this helps!
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