Pregnancy before wedding.

First of all, take a step back, breathe, and realize there is a decent possibility that you are not pregnant from one instance of intercourse. For reference, many women have difficulty getting pregnant after months or years of trying. Additionally, most early detection pregnancy tests would not be able to detect that you are pregnant until the week AFTER you miss your period, so you wont know until after your wedding anyway.

My question to you is why would anyone be suspicious? There is 0% chance that you will be "showing" at all that early on (2-3 weeks pregnant?), it wont even look like you're bloated. Most women don't begin to show until around 3 months, and some even longer than that.

Are you normally a drinker and thinking you will be abstaining from drinking? If that is the case and anyone asks (highly likely no one will) I would tell them that you want to feel your best and be present on your wedding day.

If it turns out you are pregnant can you get mocktails without them knowing? That way it won't tip anyone off if that's what you're concerned about?

Definitely don't be too stressed about it! Like Jessyca said, you shouldn't be showing at all and obviously you have no way of knowing if it will happen or not. Plus, stress can make your period become delayed, so it's okay to have a plan but don't keep yourself up at night stressing! I totally understand feeling like you have to worry about it though, I'm a worrier so I always keep pregnancy tests in our house in case my (irregular) period is later than I should expect it to be. Usually in those 3 minutes or whatever I'm trying to figure out how we'd pay for a baby and all the furniture we'd have to move for a nursery, only to have it be negative lol.

Hi ! Baby is a blessing, so if it happens, be happy ! And then... of course there's nothing to say or announce to your guests if you just miss your period... And you can even not get it because of the stress... I wish you the best, but... those are delicate things, nature decides herself.... There's a reason we usually wait till the 2nd trimester ! ;-) You can still do a pregnancy test even 8-6 days before your period date, and then after, still before the wedding, to be sure. At "worse" you won't be drinking alcohol on THE day, and so what ? ;-) You can still have other drinks in your glass, discretely.

I wish you the best, as I know myself, sometimes it's really not so easy to get pregnant ;-)

There are a number of women who have fallen pregnant from one encounter (i.e. honeymoon babies) but the reality is, is it less likely than you think. Even if you are pregnant, you would be less than one month through and while you could perhaps be experiencing symptoms of pregnancy, by the end of the month, you are highly unlikely to be 'showing'.

Though I will say this much, unless you and FH plan on having a baby now, perhaps use protection next time to avoid an unexpected pregnancy.

Totally none of our business but I'd really like to know how this situation turns out! Try not to stress, as everyone has said, in the small chance you are pregnant, its so early, you won't even feel any different.

You most likely won't even know that you are pregnant by then (if you are). Most people don't find out until after a month because it won't show on a pregnancy test before then, normally. I personally would just continue life as normal, even if you did drink that day and turned out to be pregnant it wouldn't do anything. There's nothing to hide from your guests.