I have been doing crossfit for almost a year. I use to be so competitive and getting stronger every week. Now that I am pregnant I am scared because I do not want to do anything to hurt my baby. I am 14 weeks and would love some insight from other mommies. What did you scale your weight down to for lifting? Did you continue to do push ups? I am mainly concerned of the weight I am lifting and would like to know how much to scale. I am not use to modifying so it seems like I am not getting anything out of my work out. Any advise would help. thank you!
Unless you've been considered high risk, stopping your activity would be a detriment. Besides the physical benefits, it can help alleviate some stress during pregnancy. Just keep doing what you're doing and as you did before, listen to your body. Remember if you are obscenely out of breath, so is your baby. Your perceived exertion, intensity, and breathing rate is a fairly reasonable indictator of how Junior is doing too. With already being fit, I"m sure your perceived exertion is pretty high...as in you can take a lot.
Do your push-ups...just lower as low as your belly allows. Today, in fact, I did push-ups and just went as low until my belly touched the floor. You could also do them on an incline so you have some more space to move that belly through. :)
Don't fret too much on the amount of weight you are lifting but now is not the time to shoot for any PRs! Now is the time to maintain your fitness and keep your core strong for labor/birth. Your baby is well-insulated and cushioned inside you. It would take quite a large exertion to hurt something.
You can get your heart rate fairly high since you're already fit. I taught kickboxing until 32 weeks with my first pregnancy. It wasn't until my heart rate got around 165-170 that I actually felt "out of breath". At that point then, I'd back off and just make sure I didn't overheat myself.
Good luck and keep lifting those weights!