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Conceived in April: when is the baby due?

A baby conceived in April is due between 23 December and 21 January.

That is 38 weeks (266 days) after conception: a pregnancy is counted as 40 weeks from the first day of the last period, about two weeks before conception.

Calculate from
days

Usually 28 days. Count from the first day of one period to the first day of the next.

Calculated on your device. Nothing is sent.

Estimated due date

Enter a date to see your estimated due date.

Not medical advice. Every pregnancy is different: ask your midwife or doctor about yours.

Due date for each day in April

Due date for a conception on each day in April
ConceptionDue date
1 April23 December
2 April24 December
3 April25 December
4 April26 December
5 April27 December
6 April28 December
7 April29 December
8 April30 December
9 April31 December
10 April1 January
11 April2 January
12 April3 January
13 April4 January
14 April5 January
15 April6 January
16 April7 January
17 April8 January
18 April9 January
19 April10 January
20 April11 January
21 April12 January
22 April13 January
23 April14 January
24 April15 January
25 April16 January
26 April17 January
27 April18 January
28 April19 January
29 April20 January
30 April21 January

In a leap year, the date moves by one day when 29 February falls between conception and the due date.

Frequently asked questions

If we conceived in April, when is the baby due?

A baby conceived in April is due between 23 December and 21 January. The table on this page gives the due date for each day of conception, and the calculator works it out from your own date.

Why is the due date 40 weeks if the baby was conceived 38 weeks before?

Pregnancy is counted from the first day of the last period, about two weeks before ovulation and conception. So the 40 weeks include two weeks before the baby was conceived.

Will the baby come on the due date?

Probably not exactly. Only about 4% of babies are born on their due date, and most arrive in the two weeks before or after it. An early scan gives the most reliable date.