I would not say run, but walking on a Tread Mill would be safer, I am a runner to and this is my first child, so I miss running but I try to help it by walking on the Tread Mill. That is what my doctor recommended.
^^the main thing is don't be to strenuous on yourself because it will strain the baby
If your currently a runner you can still run (not threw your whole pregnancy but at least til about 5/6 months then my on said to bring it down to a jog and a brisk walk wince you hit the 8th month, it all has to do with your heart rate they don't want it to be above 145
I am a runner before this pregnancy i heard of a girl who miscarried after a run after that i haven't ran since 8 weeks im 21 now.if you do be careful think of your baby good luck to you
I've ran throughout my pregnancy and have steered clear of weights. I feel like I'd be more at risk of over working myself. Having obvious joint laxity while pregnant can cause weight training to be difficult but strong muscles can only benefit you with the softening, by holding things together. I've only read positive things about weight training but I'm sorta nervous about how clumsy I can be. I haven't seen anything about round ligament pain connected to a specific excessive but after a week of running for me I can feel soreness there. Sorry if I didn't help much. Good luck on your journey and congrats!