About
Why DueDateBloom exists
DueDateBloom is a small, independent project. A due date and pregnancy week calculator is the whole of what we do here: it estimates a due date and the current week of pregnancy from the last period, an ovulation date, an IVF transfer or an ultrasound measurement. There is no account to create, no email to hand over, and no paywall hiding behind the third advert.
What DueDateBloom is for
Most health and body-composition tools online spend more screen space on advertising and consent banners than on the calculation. DueDateBloom takes the other approach — the tool does one thing, estimates a due date and the current week of pregnancy from the last period, an ovulation date, an IVF transfer or an ultrasound measurement, and the page stays out of the way while it does. A narrow scope is easier to keep correct, too.
How it works
Everything runs on your own device. When you use the tool, it counts forward from whichever dating method you choose using standard obstetric conventions — forty weeks from the last period, or the adjusted dating an IVF transfer or an early scan implies — and reports the fetal size and checkup schedule for that week. Nothing about the method is hidden: if you want to check a result by hand, the description above is the algorithm the page actually uses, and every figure you see comes from it rather than from a black box.
Privacy, by design
Your input stays local: your dates and cycle details are handled entirely by the page and never leave your device. You can turn off your connection after loading and the tool still works, which is the simplest proof that nothing is being sent.
Who uses it
- people tracking a body-composition goal.
- anyone preparing questions for a clinician.
- readers who want the formula rather than a black box.
Keeping the lights on
DueDateBloom is free to use and supported by advertising. Adverts are kept off the working part of the page, and no advertiser receives anything you type. If a page ever becomes slow or intrusive, that is a bug worth reporting.
Reaching us
Spotted a mistake or missing a feature? The contact page takes it. The suggestions that get acted on usually come from people who actually use the due date and pregnancy week calculator.