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Who could be the father?

I had my LMP on 13 June and expected ovulation according to Flo app was on 28 June.

I then had sex with guy A on 24 June and I had sex with Guy B on 26 June and 1 July. I tested on 15 July with a faint positive, I went for an ultrasound on 31 July and it read 6w1d  which gives a conception date of 2 July however if I count from my LMP which doesn’t match my ultrasound it should have read 7w 0d and ovulation occurring on 18 June as per app.

Who could be the father Guy A or B, considering conception occurred  7 days Afer sex with Guy A and only 1 day after sex with Guy B according to ultrasound.
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134578 tn?1693250592
COMMUNITY LEADER
It's not a sure thing, but sounds like Guy B has better odds. I would trust an ultrasound over an app, especially if you haven't been keeping track on the app for a long time, and/or if your cycles are not the same length month to month. An app is just a collection of averages. Does it show your cycles come on the dot every 28th or 29th day, month in month out for years? If not, it shouldn't be used to contradict an ultrasound's measurements.
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For the past 5 months my period has been of one or 2. Days so my cycle would be 28, 29 other month 30 day cycle .

I’m just abit worried  or confused due to the  contradiction of LMP date ovulation and ultrasound GA measuring my ovulation.

And the fact that sex with Guy A was a week before conception according to Ultrasound but then again within range if we match it with Flo app.

Bu then again one can’t have 2 ovulation dates so is it possible I ovulated later? Even though I have regular cycles
What estimated due date did the doctor give you, if he or she gave you one?
Estimated due date reads 24 March 2024.
Estimated due date reads 24 March 2024.
If your ultrasound was done by a respected hospital or clinic, I would tend to rely on it more than your app.

Your ultrasound suggests July 1 as conception date, which given a June 13 first day, is 18 days after your period began. It's possible for someone to ovulate 18 days after their period (women with irregular cycles or longer cycles do it all the time), but the expectation is that a next period comes 14 or 15 days after ovulation, which would have made your next period come later than 28 or 29 days from your last. Ovulation dates can change for various reasons, and you don't now have any way to know if your next period would have come at 28 or 29 days, since your pregnancy came instead. Also, though the medical world says that a woman gets her period around 14 or 15 days after ovulation, I don't know if it's ever been scientifically tested to see if it's possible for a woman to ovulate on day 18 and still have a 28- or 29- day menstrual month.

Anyway, as I already said, the second guy has the better chance, especially if the July 1 ovulation date is correct. But you can't to entirely rule out the first guy without a DNA test. If you read the FAQs at the top of the community, you'll see that a prenatal DNA test is possible. If that costly option is too expensive, you'll need to test after the baby is born, just to be entirely certain.
Thank you.

I forgot to mention that I was on fertility treatment namely clomid since Guy B and I have been trying for a baby so Gynae gave it to increase chances, I don’t know if this helps in any way.
I suppose it could have the effect of causing you to ovulate unusually. I assume the second guy doesn't know about the first guy?
(By unusually, I'm thinking of later or earlier, or more than one egg when you ovulate, but not of you ovulating twice.)
Guy A knows about Guy B but Guy B doesn’t know about A.

If I ovulated earlier wouldn’t my ultrasound read 1 week extra rather than the 1 week off.

Coz if I ovulated earlier then Guy A would have a better chance but then again if I ovulated late as per the scan Guy B seems fit, I’m soo confused I feel like I’m losing my mind.
I don't think your ultrasound reads "one week off," it reads that you conceived on July 1. If you had ovulated earlier, presumably it would have indicated an earlier conception date.

But it is asking a lot of an ultrasound to indicate the dad when you had sex with two guys so close together.  It's just an ultrasound, not a DNA test. It measures the baby's size. At 6 weeks, it should be pretty accurate but no medical professional would guarantee you that it rules out the first guy.

Are you in the U.S.? Ravgen has a "discreet" DNA test (you send a swab sample from a drinking glass or toothbrush) but Ravgen only provides services within the U.S. and Canada because of the need for fast shipping of samples. I think the DDC provides services internationally, but they don't do the "discreet" kind of sample, so you would either have to fess up, or would have to test with only the first guy. Testing with only one guy comes with its own kind of anxiety, though. Women with a secret to hide often aren't reassured by the results, they spend their pregnancies worrying that the test results were wrong.

If you can't afford the costly prenatal tests no matter if you fess up or not, then all you can do is decide how much you trust the ultrasound. Getting another ultrasound and asking for the estimated due date again, and getting the same result, might help with that.
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