I useto go to the gym all the time before my pregnancy, but I've look up so many articles where they suggest I don't :( Son i stopped and now I want to start again and I'm scared.
Jogging is fine if you were jogging regularly prepregnacy. I'm 31 wks, I have 2 different prenatal workout DVDs I do, I go to prenatal yoga & I go for 2 mile walks. Prepregnacy I was a jogger/runner but I had such bad morning (really 24/7) sickness for my 1st tri so I never got back into jogging. Once you get bigger if your still jogging get a maternity belly support wrap, they make a huge difference. One of my girlfriends who is a serious runner, ran a half marathon when she was about 20wks. But she's been an advid runner for years, runs full marathons every year. Now she's 29 wks & has moved to just walking & other ways to safely workout while prego.
If you were able to do it before you got pregnant then you can do it now. If you weren't jogging before then no I would not suggest taking it up now. Hiking is ok, swimming, walking, all exercises that are ok if you weren't really working out prior to being pregnant. But like I said, if you were running before you got pregnant, or lifting weights or playing basketball, you can continue that till it becomes to much for your body.
If you were already jogging before you got pregnant then it's fine to continue, but you shouldn't start any new exercises while pregnant. Walking and swimming are the best exercises to do while pregnant.