Your story of how you met and ended up pregnant is very similar to mine. I met my wife when we were both 27. We had a whirlwind romance and she ended up pregnant within a couple of months of us dating. We got married while she was still 6 months pregnant, tho nobody could tell. She never got really big until the last month or so.
It is a pretty reckless way to start a relationship, but here we are, 27 years later and we're still married. Unfortunately my wife had a very short lived affair about 8½ months ago, but we've both decided to stay together and work it out. 28 years is a lot to throw away, and she's one of the rare ones that has shown a great deal of remorse and has done everything I've asked of her. If it weren't for our history and her attitude and actions we probably wouldn't have survived this.
I can really relate to your situation, tho obviously I'm not a woman, and my wife didn't have her affair unti 26 years into our marriage. That part is quite different, and hers was a full blown physical affair. Needless to say, I was devastated. Tho we had fallen into a rut and there were issues between us, so it wasn't like we had a great marriage and we had some things to work on, which we have. I now feel like we have the marriage we should have always had. The pain of what happened still hits me hard some days, but her actions and attitude are going a long way toward our healing. There's no doubt in my mind that I still love her very deeply and I'm convinced it's reciprocated. I'm also convinced we're going to make it through this.
So while our relationship was rushed in the beginning and we kind of jumped into things, it's lasted. Not only lasted, but survived one of the most devastating blows a marriage can suffer. For us our son is grown and out of the house, so child care wasn't a complicating issue for consideration. We're still together because we love each other and want it to work. We love and appreciate each other more now than we ever have.
My point is, even if you jumped in a little too quickly and recklessly, and your BF emotionally betrayed you, it can still work. In my case we had a very lengthy and extensive history to draw from, and despite being completely blindsided I do still know my wife very well. I will know if something is off again. I caught on very quickly when she started the physical part of her affair.
This is not necessarily an endorsement for you to stay and stick it out. Just a data point for you should you decide to try and to let you know it is possible. However, you haven't been together for very long, and I'm guessing still learning things about each other. My advice would be to not make any hasty permanent decisions one way or the other at this point. So far it appears he's doing and saying all of the right things. The question is, will he continue to do so? Nobody knows. Your BF bears close watching right now, and that in itself can be taxing and to some folks just not worth it. Pay attention to what he does, not what he says. Actions speak louder than words, and cheaters do lie. It comes with the territory, tho some can change. My wife did.
Another consideration is, are you willing to stay in this relationship after what's happened? Things may not have w
gotten physical between your BF and his AP, but an emotional betrayal can still be very devastating. You need to figure out if you can get over that. Some folks just aren't cut out for reconciliation. That's not a judgement one way or the other. There isn't a right or wrong answer here, but it's better to just cut your losses and get out early if you're one of those people who can't get past the betrayal as opposed to dragging it out for a few years only to discover you can't tolerate it. There isn't a right or wrong choice here in general so much as it is what's right for you. Either way you go would be perfectly understandable.
It looks like you're getting your ducks in a row and taking steps to protect yourself and your child. That's great. A lot of folks in your shoes find themselves frozen with indecision and inaction. You don't want to stagnate in limbo forever, so it's good that you're taking action and being proactive. You deserve a lot of credit for having that level of strength and foresight. Good on you.
Don't worry about being judged. Most of us are on your side no matter which way you choose to go. If you decide to stay and make it work, you'll get advice tailored toward reconciliation. If you decide you just can't get past it, you'll get advice on how to separate and move forward from there. The decision is really ultimately yours to make. My goal is to get you out of infidelity one way or the other. Whether that means reconciliation or divorce. In the end we all just want what's best for you.
You drive the bus tho, and that goes for how you work it out between you and your BF. The betrayed partner dictates how reconciliation is going to work. This is on your time frame. Don't let him rush you or tell you things like "It's been X number of months. You need to get over this." Nuh-uh. You take all the time you need. Reconciliation is a gift he doesn't deserve and he needs to be very grateful if you decide to give it to him. Don't accept anything less than 100% committment, 100% radical honesty, and 100% effort toward making this work.
So sorry you've found us. This is a club that no one wants to join, but it's a good group with a lot of collective wisdom when it comes to this subject. Keep posting, ask questions if you have them, and use us to vent if you need it. There's no issue too small or ridiculous when it comes to this. We know, we've been through it. We understand. Infidelity is a lot more traumatic than most folks realize. Me included until it was thrust into my lap. You just don't get it until you go through it. You will get through this. It will get better one way or the other. If you decide to reconcile, it's a long, bumpy road, but completely doable. Just keep your guard up and watch for red flags.