Working out during 1st trimester

posted 2 years ago in Pregnancy
Post # 2
3623 posts
Sugar bee
  • Wedding: July 2013

gyrobb:  My obgyn told me I could do everything I had done for the past 6 weeks. So if you ran a marathon before you conceived, you can still do 20+ mile runs and 50 mpw. You can still lift and lift heavy. Just listen to your body and go lighter/ slower as needed 

Post # 3
2014 posts
Buzzing bee
  • Wedding: July 2016


gyrobb:  I have a girlfriend who was pregnant and she did xfit all the way up until the week before they were due (she made it past 37 weeks). She only took it easy when her body told her she should. Her doctor had recommendations but didn’t set any restrictions. Every pregnancy is different thought and your obgyn should be able to give you solid guidance. Your water intake before and during are extremely important though.

Post # 4
1181 posts
Bumble bee
  • Wedding: September 2015

You should be able to do all that. Crossfit can be dangerous, so just listen to your body. First tri is no biggie, you’re just tired all the time, but working out actually helps that. Fit moms have way easier deliveries too!

Post # 5
483 posts
Helper bee
  • Wedding: May 2018

You need to be mindful of your core temperature getting too high. 

Post # 6
8480 posts
Bumble Beekeeper
  • Wedding: September 2013

I don’t think you need to mind anything other than don’t overdue it or push yourself too hard. Listen to your body and stop or take a break if you need to.  Most people can’t put forth the same effort when they’re pregnant as they could before.

Yes, you don’t want your core temperature too high but I don’t think that’s an issue unless you’re working out outside in higher temperatures.  Which I did go for 3m runs out in the August heat before I knew I was pregnant.  I found out ta 7-8w when I could barely run 1m.  The heat was bothering me then and along with the fatigue I didn’t run much until the 2nd tri.

Post # 7
894 posts
Busy bee
  • Wedding: October 2013

Like PP said, if you were doing it before, you’re probably fine.  I’m 17 and a half weeks and only just had to stop using a machine that required laying down.  That’s the only workout modification I’ve made.  Other than that, I run, lift a bit, still do sit-ups and all the lay-on-your-back stuff, and haven’t really changed a thing.  From what I’ve heard and what I can tell so far myself, your body will tell you when it’s time to step things down a notch.  Until then, you’re good to go. 

Also, if you feel absolutely awful like some women do, that’ll effect things.  If not, count yourself lucky and join the pregnant workout club 😉

Post # 8
1057 posts
Bumble bee
  • Wedding: August 2013

gyrobb:  I’m 23 weeks pregnant, and a former collegiate runner. Before pregnancy I was running pretty high mileage and lifting weights. I talked to my OB and he said that I could still work out, but just make sure to stay hydrated and listen to my body. I, however, did not feel comfortable running because I started to show so pretty early (my boobs and belly were getting big so fast and I was afraid that I would fall and hurt myself) and I was soooo sick and weak. These days I just walk (at an intense pace) 3-4 miles a day. It’s all about what you feel comfortable doing and what your body is already used to. 🙂

  • This reply was modified 1 year, 11 months ago by  .
Post # 9
3119 posts
Sugar bee
  • Wedding: August 2012

As long as you feel good, anything other than contact sports and doing new stressful exercises that you haven’t done before should be good! I did everything including running up to my third trimester then slowed it down to just weightlifting, spin classes, elliptical and swimming. 

Post # 10
1566 posts
Bumble bee
  • Wedding: May 2014

gyrobb:  One big thing to watch out for is that your joints are going to be more pliable during pregnancy. The hormones affect them so that your hips and such can accomodate the changes of childbearing.

Because of this, high impact exercises, or exercises where you’d be prone to over-extending are discouraged. Think about it, if normally, doing kickboxing or box jumps can hurt your knees or hips, it’s more likely to do so when you have relaxed ligaments during pregnancy.

You really need to listen to your body and cut out some high impact moves. You can stay intense, but maybe instead of box jumps, step up.

Here’s the Les Mills information on pregnancy and working out that I found helpful to adapt to my other areas of fitness.


Post # 12
2197 posts
Buzzing bee
  • Wedding: March 2013

gyrobb:  Crossfitting bee here too and yogi. During the first tri my doctor said I can continue as normal… however, I was extremely nauseated, dizzy, and fatigued. So I had to scale back a ton more than I intended too. Keep in mind your blood volume starts to increase so you might find your HR increases a lot quicker than before or out of breath. Just listen to your body. You also don’t want to overheat. Remember you are growing a human and don’t be too proud to go easier. 

Now in my 2nd tri, I am starting to feel much better. 

This is a good resource:

Post # 13
2474 posts
Buzzing bee
  • Wedding: October 2011

gyrobb:  I continued to do all my normal activities into my third trimester- this included running, hiking, alpine and Nordic skiing, backcountry skiing, weight-lifting, spinning, circuit class (toned it down on the high impact stuff towards the end), yoga, swimming. I also did my normal core/abdominal exercises. I just listened to my body, drank plenty of water and didn’t go super hard (and was more cautious on my skis). congrats to you!!!

Post # 15
2197 posts
Buzzing bee
  • Wedding: March 2013

gyrobb:  I’m 17 weeks tomorrow. A May mama. 🙂 

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