Pregnancy Calculator

Free calculator which helps to calculate the pregnancy due date and conception date.

Features

Estimate due date and conception date of your baby.
It is not an exact calculation, just an assumption.
This is a free javascript calculator.
Just copy and paste the code of pregnancy calculator into your webpage and use it.

Preview

Pregnancy Calculation

Downloads

script Code

<html>
<head>
<title>Free Pregnancy Calculator | Due Date, Conception Date Calculation </title>
<script type="text/javascript">
function calc()
{
var day = document.first.len11.value;
var mon = document.first.len12.value;
var year = document.first.len13.value;
var ylen = year.length;
var d = new Array("SUNDAY", "MONDAY", "TUESDAY", "WEDNESDAY", "THURSDAY", "FRIDAY", "SATURDAY");
var m = new Array("JANUARY", "FEBRUARY", "MARCH", "APRIL", "MAY", "JUNE", "JULY", "AUGUST", "SEPTEMBER", "OCTOBER", "NOVEMBER",
"DECEMBER");
var curd = new Date(year,mon-1,day);
var res2 = curd.getMonth();
var res = new Date();
var diff =
Date.UTC(res.getFullYear(),res.getMonth()-1,res.getDay(),0,0,0)
- Date.UTC(curd.getFullYear(),curd.getMonth()-1,curd.getDay(),0,0,0);
var secleft = diff/1000/60;
var hrsleft = secleft/60;
var daysleft = hrsleft/24;
//if(res2 == (mon-1) && daysleft < 300 && year!="")
if (year!="" && ylen>3)
{
var fd1 = new Date(year, mon-1, parseInt(day)+10);
document.first.fd1.value = d[fd1.getDay()]+", "+m[fd1.getMonth()]+" "+fd1.getDate()+", "+fd1.getFullYear();
var fd2 = new Date(year, mon-1, parseInt(day)+20);
document.first.fd2.value = d[fd2.getDay()]+", "+m[fd2.getMonth()]+" "+fd2.getDate()+", "+fd2.getFullYear();
var cd = new Date(year, mon-1, parseInt(day)+14);
document.first.cd.value = d[cd.getDay()]+", "+m[cd.getMonth()]+" "+cd.getDate()+", "+cd.getFullYear();
var fte = new Date(year, mon-1, parseInt(day)+84);
document.first.fte.value = d[fte.getDay()]+", "+m[fte.getMonth()]+" "+fte.getDate()+", "+fte.getFullYear();
var ste = new Date(year, mon-1, parseInt(day)+189);
document.first.ste.value = d[ste.getDay()]+", "+m[ste.getMonth()]+" "+ste.getDate()+", "+ste.getFullYear();
var dd = new Date(year, mon-1, parseInt(day)+280);
document.first.dd.value = d[dd.getDay()]+", "+m[dd.getMonth()]+" "+dd.getDate()+", "+dd.getFullYear();
}
else{
alert("Invalid Date");
}
}
function isNumber(evt) {evt = (evt) ? evt : window.event;var charCode = (evt.which) ? evt.which : evt.keyCode;if (charCode > 31 && (charCode < 48 || charCode > 57)) {return false;}return true;
}
function chk(){
var sds = document.getElementById('dum');
if(sds == null){alert("You are using a free package.\n You are not allowed to remove the tag.\n");
document.getElementById("tab").style.visibility="hidden";
}
var sdss = document.getElementById("dumdiv");
if(sdss == null){alert("You are using a free package.\n You are not allowed to remove the tag.\n");}
}
window.onload=chk;
</script>
<style>
.leftt
{float:left;
color: #3D366F; font-size:13px;
}
.tbox
{
width:45% !important;
}
.frms {border: 1px solid #ddd;border-radius: 0.3em;color: #333;font-family: Tahoma,Geneva,sans-serif;font-size: 0.9em;line-height: 1.2em;margin: 0 auto;padding: 10px;width:50%;
}
.frms input[type="text"], [type="password"], [type="file"], textarea, select {background: none repeat scroll 0 0 #fff;border: 1px solid #ddd;border-radius: 0.35em;height: 35px;margin-bottom: 15px;margin-top: 5px;padding: 0 0.5%;width: 99%;
}
.frms input[type="submit"], input[type="reset"], input[type="button"], button, .yellow_button, .blue_button {border: medium none;border-radius: 0.3em;color: #fff;cursor: pointer;font-weight: bold;margin: 10px 0;padding: 7px 14px;
}
.frms input[type="reset"] {background: none repeat scroll 0 0 #ee765d;border-bottom: 3px solid #d95e44;text-shadow: 1px 1px 0 #8c3736;
}
input[type="button"], button, .blue_button {background: none repeat scroll 0 0 #468cd2;border-bottom: 3px solid #3277bc;text-shadow: 1px 1px 0 #214d73;
}
.new
{padding: 16px;
}
@media only screen and (max-width:480px)
{.frms {width:90% !important;}.tbox
{
width:95% !Important;
}.frms input[type="text"], [type="password"], [type="file"], textarea, select {width:95% !important;}}
</style>
</head>
<body>
<div class='resp_code'>
<p align='center'><h2 align='center'>Pregnancy Calculator
</h2></p>
<div class='clear'></div>
<form id='tab' name=first class='frms'>
<div>
<div align='center'><label>Date of Last Menstrual Period:</label></div><br>
<div class="group_con">
<label class='leftt'>Date </label><select name=len11><option name=1 value=1>1</option>
<option name=2 value=2>2</option><option name=3 value=3>3</option><option name=4 value=4>4</option>
<option name=5 value=5>5</option><option name=6 value=6>6</option><option name=7 value=7>7</option><option name=8 value=8>8</option>
<option name=9 value=9>9</option><option name=10 value=10>10</option><option name=11 value=11>11</option>
<option name=12 value=12>12</option><option name=13 value=13>13</option><option name=14 value=14>14</option>
<option name=15 value=15>15</option><option name=16 value=16>16</option><option name=17 value=17>17</option>
<option name=18 value=18>18</option><option name=19 value=19>19</option><option name=20 value=20>20</option>
<option name=21 value=21>21</option><option name=22 value=22>22</option><option name=23 value=23>23</option>
<option name=24 value=24>24</option><option name=25 value=25>25</option><option name=26 value=26>26</option>
<option name=27 value=27>27</option><option name=28 value=28>28</option><option name=29 value=29>29</option>
<option name=30 value=30>30</option><option name=31 value=31>31</option>
</select></div>
<div class="group_con"><label class='leftt'>Month</label><select name=len12><option name=1 value=1>1</option>
<option name=2 value=2>2</option><option name=3 value=3>3</option><option name=4 value=4>4</option><option name=5 value=5>5</option>
<option name=6 value=6>6</option><option name=7 value=7>7</option><option name=8 value=8>8</option><option name=9 value=9>9</option>
<option name=10 value=10>10</option><option name=11 value=11>11</option><option name=12 value=12>12</option></select>
</div>
<div class='group_con'><label class='leftt'>Year</label>
<input name=len13 type=text onkeypress="return isNumber(event)" maxlength='4'>
</div></div>
<div align='center'><input type=button
name=cc value=Calculate onClick="calc()">
<input type="reset" value="Reset">
</div>
<div align='center'><h5>Due Date, Conception Date Calculation Results:</h5></div><label class='leftt'>Estimated Fertility Dates :</label><br><br>
<span><input type=text readonly
class='tbox' name=fd1 style='float:left;'></span>
<span class='new'>
to
</span>
<span><input type=text readonly
class='tbox' name=fd2> </span><div> <label class='leftt'>Estimated Conception Date :</label>
<input type=text readonly name=cd> </div><div> <label class='leftt'>First Trimester Ends(12 Weeks) :</label>
<input type=text readonly name=fte> </div>
<div> <label class='leftt'>Second Trimester Ends(27 Weeks):</label>
<input type=text readonly name=ste> </div>
<div> <label class='leftt'>Estimated Due Date(40 Weeks) :</label>
<input type=text readonly name=dd> </div><script type="text/javascript"></script>
</form>
<div id="dumdiv" align="center" style=" font-size: 10px;color: #dadada;"><a id="dum" style="padding-right:0px; text-decoration:none;color: green;text-align:center;" href="https://www.hscripts.com">©h</a></div>
</div>
</body>
</html>

Release Date - 21-05-2015
Get free version without ©copyright link for just $10/-
For customization of this script or any script development, mail to support@hscripts.com

Usage

Copy and paste the above code in your webpage.
Save and run the file in your browser. Now you will get the pregnancy calculator.
Select the date and month from the drop down and enter the year of your last menstrual periods.
Function calc() will calculate and bring out the result of your expected fertility dates and also estimates your pregnancy due date.