I go to BCT soon as a 92y with an Opt40. My wife got pregnant and I don't want to do Ranger (but still want Airborne). Can I drop just RASP?

Go to RASP. It’s only an xtra 3 weeks. You will regret it later on down the road if you don’t.

If you're a 92Y and have the opportunity to go to Ranger school do not pass it up. Not only will you belong to one of the best outfits the Army has to offer you will have a leg up on others when it comes to future promotions. When your records go before a review board and they are looking for something to separate individuals you'll have it. You're in the Army and it's about sacrifices. My wife was pregnant during three of my deployments Somalia, Iraq and Afghanistan, but at the end of the day the decision rest squarely on your shoulders choose wisely my friend.

It sounds like you don't want to go and you're using your wife as an excuse.
RASP is designed to weed out the quitters.
Finish airborne school, quit before you start RASP, and go to the 82nd.

I am sure that you were aware that your wife could become pregnant and you wanted to be a Ranger. Go to RASP.

PVT,

Do it. Dont be that guy. Every Army Installation has posters about that guy. Dont be that guy.

SGT

I'm not a Ranger, but have met a few. A non Ranger in Bat is like being a Leg in an AIRBORNE unit. It's something you don't want to be without one hell of a reason, and that reason won't save you. If you signed the line (I'm a brat myself), you owe it to yourself AND your wife plus son NOT to be seen as a quitter. What you should've done before posting this is talk to her and really explain how much this means to you, how much MORE she means to you, and how it'll be hard for awhile, but when it evens out, you'll be with one of the best units in the Army, you'll be one of the best trained Soldiers in the Army, and you'll have earned the right to call yourself a Ranger.

Military life is hard no matter what you do on the family unit. My ex gave me an ultimatum; Army or her. I reupped right in front of her, and she still left years later. I still stayed in for my greater good. Control yourself, make the best of yourself and keep your family in the decision making loop. As long as you're honest with them and you, no matter what you win, and you can never say you didn't try and gave everything your all.

Go to RASP man and give it your all. Keep your head up.

If you want Airborne, do not quit anything at all, no matter what anyone says, until you are holding your Airborne certificate. Someone will try to tell you in Airborne that if you want to drop RASP, you have to do it then. This is just one of the first times in your Army career that leadership will lie to you. After you graduate Airborne School, you can drop RASP. They may make you move your stuff down the street to the RASP barracks, but you won't have to do RASP if you don't want to.
I saw you mentioned concerns about stability. This is ridiculous. Batt is probably the most stable possible assignment in the Army. You will go to one Batt and stay there until you go for Instructor time as an E-6, and if you're at Benning you might still stay there for Instructor time. Then you'll go back to Batt, possibly the same one. Then eventually you'll have to do charter time, which could be anywhere. After that you might be able to go back to Batt.

If it helps I just graduated AIT and I'm waiting on my orders to head to airborne. I have opt 40 and its scares the hell out of me, but the idea is exciting all the same. Just go so you dont end up with any regrets.

You could and people really won’t look down on you, but rasp might be fun and best for your situation. Chasing your bags is apart of it.

Short answer: Yes, you can. More than a few of the RASP guys in my BAC class dropped from attending RASP after reporting to BAC. You can also withdraw after being picked up for pre-RASP.

Long answer: don't. I can tell you with 100% certainty that you will absolutely regret not attempting to join the Ranger RGT. It will be something you regret long after your career has ended.