this is my routine, mostly strength training and ~15 mins of cardio after plus ~13k steps every day

6

Gaining that weight is natural. You gain muscle very quickly your first couple months of lifting. Stretch marks are also very normal for putting on a lot of muscle mass very quickly

6

You also don’t need goblet squats since you’re doing a leg press and leg extensions. I would play around with decreasing the amount of sets you do for your exercises for 1, so that you’re able to progress/recover better

6

Stretch marks are normal when you gain muscle, it most likely isn’t fat.

5

Sadly the body can put on about .5lbs a week at most naturally as a male, likely less as a female. Most of it realistically is fat due to 17lbs in 2 weeks. Women also do have large weight fluctuations due to periods and hormonal stuff plus if you started eating more carbs and taking creatine you’ll hold more water in your muscles (good thing) and will be heavier. But you likely gained more fat than you intended to. Now you’re still at a very healthy weight and can lose it all if you want

2

you are probably gaining fat but that's not necessarily a bad thing. it means you're eating well enough to get muscle growth

1