Could it be the saddle?

So I bought a new bike after taking 3 years off of riding. I bought a Trek 2.1 WSD road bike. I love the bike. I'm having pain in the crease of my legs (where my butt and leg connect towards my girly parts). I don’t feel like it's the sit bones. I can't tell if this is just sore from not being on a bike in awhile or if I need a new seat. They said they fitted the bike to me when I bought. I was just curious if yall could share some insight. Thanks

If it's sore and not chafed, then it could be that the saddle isn't wide enough in the rear to support your sit bones, causing you to put your weight on the pubis. Or, if the saddle is really squishy, then your sit bones could just be sinking in too far (also not supported), with the same end result.

Or your cleats are not properly adjusted over your axles, putting stress on weird parts of your foot/leg :) Even if you do not have cleats for your pedals, if your saddle aligns your legs with your pedal axle porrly, your knees may be stressed.

Try adjusting the fore/aft position of your saddle. Also, those Bontrager stock saddles are icky. I had major fit issues until I replaced it with a better saddle :) Apparently, I was not "perched" correctly on the saddle I was on (it was too wide) so I bought a Specialized Ariel and it increased my riding comfort immediately!

Still tweaking my fit but I didn't realize how much pain and suffering my saddle induced until it was switched out with a better one (i.e. one more suited to my physiology).

Your bike sounds great--you should post some photos so we can all drool over it and tell you how shiny and beautiful it is! ;) :D

How long have you been back on the bike? If you've only gone out a few times, then I'd say it might be soreness. If it keeps up, then Aica and Ana have good suggestions.

For me, pain in the leg crease seems to be associated with a chamois that's too thick for me or has seams in the wrong place for me.

For me, that sort of chafing was mostly due to a too-wide nose on the saddle and too gradual of a transition from the nose to the back of the saddle. I now ride a T-shaped saddle (Aspide Glamour).

I also think that a too-big chamois can be a problem, as well. So I stick to shorts that aren't overly padded.

when I got back on my bike after a couple of years of no riding I also experienced soreness and discomfort from my saddle. But I knew that the saddle was OK for me because it was the one I always used to ride on. Until I got used to it again, I could ride one day, but would have to take the next day off because of soreness from the saddle. But after getting some miles under my belt, I experience no soreness at all (until I've been sitting on the bike for 8hrs . . . )

After being abroad for 5+ months, I got back on my bike with it's perfectly comfy and familiar saddle and got really sore after a very short ride.

Then I remembered my A&D ointment, and voila, no more soreness.

Which leads me to ask if you've been lubing the area sufficiently?

Have you had your sit bones measured? My trek store has this gel thing that you sit on and it tells how wide you are. I needed a wider seat than the Bontrager that my bike came with. I bought a Planet Bike which isn't a top brand I don't think but it made a huge difference.

I think it could be the saddle too. When I got my bike, the LBS switch my seat from a Jett to a Specialized Windie (very soft seat). Man, I was in pain within an hour. But yesterday, I switched it back to the Jett and I rode over 3 1/2 hours w/ no pain. My seat bone is a bit sore but the LBS said the seat will need about a week for it to "soften" a bit. I truly believe in a harder seat for a long ride now!

I had the same happen.I rode for a couple of months and then got some minor pain, then major pain. Redness , swelling, it was awful.
Saddle was the one that came with the cycle( its a sub zero) which was too wide for my pelvis.
Im short( 5'3)and small( 50 kilos) so Im actually using a mens selle Italia , that a friend passed on to me. I didnt measure sit bones, as I am small enough to fit mens saddles. ( narrow hips)
Its very hard, but I am finding vast relief and like hard seats more.
Also, dont buy cheap shorts. Get moulded rather than sewn chamois.
I used to use lots of chamois cream, but now dont have too.