kinda confused really need advice:(

[July2baby]

My Boyfriend And I Had Split For A Couple Months in The Month Of September I Had Got A Little Crazy And was Under The Influence And Had Made A Dumb DecisionTo Have Sex With A Friend. Well Me And My Boyfriend Have gotten Back Together In October And Then I Shortly Found Out Im Pregnant...We Are Currently Buying A House And Cars Together But Now things Are So Stressful Because He Believes The Kid is The Other Guys. Can Anyone Please Give Me Advice To Ease My Mind????

My Know Was Sept 25Th
Had Sex with My FriendThe Might Before It Started
Missed Period In October
Got An Ultrasound 8 Weeks A My Lmp And Baby Was Measurin Straight Back To My Period Start Date
I Had Sex My My Boyfriend From The Beginning Of October On.
My "Conception" Date From The Ultrasound Was October 9Th
Is There Any Way This Baby Could Be From The Guy The Night Before My Period??? Im So Confused If It Helps My Periods Are Regular Every 30-31 Days :( Things areGetting Bad And Im Starting To Consider Adoption Any Help?

[July2baby]

Thank You Anniebrooke I've Asked Before and Other Women Say Two Weeks Isn't Enough Time Gap And That I Could've Obligated That Day Before My Period And All Kind Of Things But It doesn't Really Make Sense To Me...Thank You For Your Help And I Hope He Will Understand

[AnnieBrooke]

Certainly a baby conceived earlier would be bigger, and there is enough time in between the guys that it would be noticeable in an ultrasound.  But your case is even simpler than that because if the last time you had sex with Mr. Wrong was September 24 and then if you had a period beginning September 25, you just did not get pregnant by Mr. Wrong.  Women ovulate two weeks before their period, and their egg only lasts one day.  You would have had to ovulate one day before your period, and that doesn't happen.

[July2baby]

You Answered My Question Great, I Was Jus Wondering If You Think if I conceived somehow With The Other guy Would The Ultrasound Would've Shown The Baby To Be Bigger? I Don't Know much About These Things To Really Give Factual Proof To My Bf He's The Daddy.

[AnnieBrooke]

Take care.  

[July2baby]

Thank You For Your Advice! I Wasn't Sure If A Girl Could Get PregnantLiterally The Night Before My Lmp And If An 8 Week Ultrasound Would Be That Far Off On A Conception Date...I Will Continue To Tell Him What I Already Know And I Guess If He Wants To GetA Test That's Up To Him...Thank You!!

[AnnieBrooke]

If the last time you had sex with Mr. Wrong was September 24 and then if you had a period beginning September 25, you didn't get pregnant by Mr. Wrong.  You would not have been ovulating the day before your period.  If your conception date from the ultrasound was October 9, that sounds correct, given when your period was.  Your boyfriend is being nervous, which is understandable in any new dad, but there is no reason to assume the worst just because he is nervous.  It's just not the way things work out, for a woman to get pregnant one day before her period and then to have the period and then somehow to magically be pregnant from before the period.  Tell your boyfriend you know the baby is his, but that you two and the baby will be sure to have a DNA test once the baby is born just so he will never have to worry about this again.  It wasn't the other guy.