Aa
Not sure who father is ,... please help
After having 3 ultrasounds my doctor as well as the ultrasound tech said i am 20 weeks today and my due date is July 4th. When i count back 40 weeks from July 4th it falls on September 29th. My now boyfriend and I had sex for the first time on October 1st while as gross as it sounds, was still on my period. We continued having sex multiple times throughout the next couple weeks but he always pulled out. I also slept with someone else on October 11th. Based on the ''conception calculator'' i conceived on the 11th or sometime before or after. I know ultrasounds are only 3 to 5 days off which would make it my boyfriends. However i get confused with the conception calculator telling me differently. Can someone please help me with this!
COMMUNITY LEADER
To understand the medical way of counting a pregnancy (which gives you a "GA" or "gestational age,") and why it doesn't count you back to your conception date, here is something from another person's post:
"Back in Grandma's day (and for generations before), the only way a doctor had to tell when a pregnancy began was by starting the count with a big signal. Ultrasounds didn't exist, and not even easy pregnancy tests. So the only way to start the clock for the purposes of knowing how far along a baby was progressing was to begin counting on Day 1 of the woman's last period, before she got pregnant and stopped having periods. No doctor thought a woman was in fact pregnant when she was having her period, but that was a good place to start the count because it was a known date. (Ovulation is hidden and still mysterious in its timing. Bleeding, you can see.)
"That counting method has persisted until now. Ultrasonographers use it. Medical textbooks use it. Day 1 of "pregnancy" is day 1 of bleeding of the period. The bleeding happens for about five days, and after it is done, in another week or so ovulation occurs.
"A full-term pregnancy from conception to birth is 266 days, but to make the dating system [that starts with the first day of the last period] work, doctors add another 14 days at the front, creating a "40 week" pregnancy 280 days long.
"Being told by a doctor that you are (for example) 7 weeks 5 days pregnant, is the same as being told you are about 5 weeks 5 days since conception. (UNLESS you asked specifically, using the word "conception." But just asking "So, how far along am I?" are not going to get you to that info.) The same doctor who just told you that you were 12 weeks pregnant will cheerfully tell you (if asked) that you are 10 weeks since conception. And unfortunately for scaring and confusing patients, doctors are so used to that form of definition of pregnancy that it won't even occur to them that it is confusing. All medical pregnancy data is calibrated that way."
"Back in Grandma's day (and for generations before), the only way a doctor had to tell when a pregnancy began was by starting the count with a big signal. Ultrasounds didn't exist, and not even easy pregnancy tests. So the only way to start the clock for the purposes of knowing how far along a baby was progressing was to begin counting on Day 1 of the woman's last period, before she got pregnant and stopped having periods. No doctor thought a woman was in fact pregnant when she was having her period, but that was a good place to start the count because it was a known date. (Ovulation is hidden and still mysterious in its timing. Bleeding, you can see.)
"That counting method has persisted until now. Ultrasonographers use it. Medical textbooks use it. Day 1 of "pregnancy" is day 1 of bleeding of the period. The bleeding happens for about five days, and after it is done, in another week or so ovulation occurs.
"A full-term pregnancy from conception to birth is 266 days, but to make the dating system [that starts with the first day of the last period] work, doctors add another 14 days at the front, creating a "40 week" pregnancy 280 days long.
"Being told by a doctor that you are (for example) 7 weeks 5 days pregnant, is the same as being told you are about 5 weeks 5 days since conception. (UNLESS you asked specifically, using the word "conception." But just asking "So, how far along am I?" are not going to get you to that info.) The same doctor who just told you that you were 12 weeks pregnant will cheerfully tell you (if asked) that you are 10 weeks since conception. And unfortunately for scaring and confusing patients, doctors are so used to that form of definition of pregnancy that it won't even occur to them that it is confusing. All medical pregnancy data is calibrated that way."
COMMUNITY LEADER
If you count back 40 weeks from your due date to try to get to a conception date, you are making a mistake. 40 weeks (280 days) back from your due date is the (assumed) first day of your last period. Count back 266 days from your due date to try to assess when you might have conceived.
Also when did you get your first ultrasound? If it was an early ultrasound (like week 7), a due date based on it would be the most reliable. The farther along in the pregnancy, the more "give or take" there is to the dates, because babies grow at different rates.
Also when did you get your first ultrasound? If it was an early ultrasound (like week 7), a due date based on it would be the most reliable. The farther along in the pregnancy, the more "give or take" there is to the dates, because babies grow at different rates.
The October 11th guy pulled out as well and it was a one time thing that didnt last long. I've had so much more sex with my boyfriend than the other guy, so im kinda hoping the odds are in his favor. The nurse said i more than likely conceived sometime between October 1 through the 11th. So is it really possible that it could still be his? even with my ultrasound pointing to my current boyfriends?
I'm due the 12th of July and according to my tracker conceived date was Oct 19th, seems more likely if you had or period the previous
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