Please help! does anyone know how conception works?

Im 38 Weeks Pregnant And Due The 21st Of April.
There Is 2 Potential Dads 2 My Baby And Im Going 2 Do Dna When He Is Born As I Really Messed Up
Basically I Was With Somebody Named Adam And We Broke Up, I Felt So Low And Upset I Ended Up Going 2 See An Ex For Comfort We Got Drunk And Ended Up Sleeping Together, Just The Once And For Not Very Long At All!
I Found Out Then In September I Was Pregnant, It Really Shook Me Up And I Was Going 2 Have An Abortion Because Of The Whole Situation But I Kept My Baby As He Was More Important 2 Me Than The Father!
But As Time Has Gone On Me And Adam Have Got Back Together And He Is In Prison At The Moment, He Believes My Son Is His As He Found Out I Was Pregnant By Somebody And I Didn't Know How 2 Tell Him In There I Had Doubt As I Was Worried How It Wud Affect Him Going Round And Round In His Head Until Baby Was Born 2 Find Out The Truth!
Ive Made Such A Mess Of Everything But I Really Thought Keeping It From Him Would Protect Him With Him Being In Prison, It Can't Be Easy And I Was Worried About How He Would React!

The Dates I Had At My 1st Scan I Was 17 Weeks And 2 Days Pregnant So I Automatically Assumed He Was Adam's As It Worked Out 2 The 15th July And I Didn't Sleep With My Ex Until The 30th July So I Just Thought I Was 2 Far Gone For It 2 Be My Exe's
Adam Proposed 2 Me And We Have Been Carrying On As We Will Be A Family When He Gets Released From Prison! But As It's Got Nearer The Birth Im So Worried Incase He Isn't Adam's And It Ruins My Family. I Love Adam With All My Heart And Know I Shud Never Have Slept With My Ex. I Don't Regret My Son 1 Little Bit Even If He Is My Exes Son But I Just Want Him 2 Be Adam's So Much, I Feel I Will Break His Heart If He Isn't. He Loves Our Little Boy!

Im Due 2 Give Birth In 2 Weeks Time And This Is Really Stressing Me Out, I Just Don't Know What 2 Do And It's Playing On My Mind So Badly. I Keep Crying And Getting Angry And Im Worried About Stressing My Baby Out Before He Is Just About 2 Be Born!

I Saw A Programme On Jeremy Kyle This Girl Was 18 Weeks And 2 Days Pregnant On Her 1st Scan And It Turned Out That A Guy She Had Slept With 15 Weeks Ago Was The Dad! This Doesn't Make Sense 2 Me

Id Be So Grateful For Any Advice
xO

Dates

They count a pregnacy from the first day of your last period, however you would not have concieved until about 2 weeks after that, so a general rule to work out when you concieved is to minus two weeks from the amount of weeks pregnant you are.

For example If your first day of your last period was christmas day 2008 you would now be classed as nearly 15 weeks pregnant, however the baby was probably concieved 13 weeks ago about the 8th jan.

You could go to your GP or midwife and ask if they can help you work out your approx date of conception, which may help

Good luck

Thank You So Much For Your Reply Hun I Really Appreciate It
It's Made Me Realise The Future Of Myself And My Unborn Son
I Always Dreamt Of A Happy Family But Looks Like I Won't Be Having One After All.
I Don't Have A Clue How I Am Going 2 Tell Adam, The Man I Love & Who I Wanted 2 Spend The Rest Of My Life With And Was Also Planning On Being His Wife One Day, That The Baby Im Carrying Isn't His. It's Going 2 Break His Heart & Who Want's 2 Cause Pain 2 Someone They Love
Im Not Feeling Sorry 4 Myself As I Only Have Myself 2 Blame But After 7 Years Of Life Going Wrong, I Finally Thought I Had Found Happiness & Now I Have Lost It All. I Realise The Consequences Of My Actions & Know Now I Should Have Been Honest With Him From The Beginning But I Honestly Thought I Was Doing The Right Thing In Protecting Him From It All. How Wrong I Was!
I Know I Need 2 Keep Strong For My Son But Im Finding It So Hard, I Just Wanna Crawl Into A Corner And Disappear. Im Finding It So Hard 2 Cope At The Moment And Have 12 Days Until My Son Is Due
I Really Don't Understand Life At Times Why It Causes So Much Misery & Pain
I Do Love My Little Boy, He's My World But Why Couldn't I Have Just Got Something Right For Once
xO

Still have a dna test

If I was you I would still have a DNA test just to be sure before you resign yourself to your son being your ex's.

Good luck with everything

Yes you are right

I Agree Hun I Am Going 2 Have A Dna Test As Soon As My Lil One Is Born
This Has Been Playing On My Mind Way 2 Much And It's Not Something I Want 2 Continue Too Affect Me
I Just Have 2 Wait Until My Son Decides 2 Appear
Thank You xx