It largely depends.
It never hurt my career, quite the opposite as I’ve New recently promoted and my post maternity year was brilliantly productive but... I was 39 when I had my first child so I was established already but in my case meant a longer and more stressful conception journey and a brush with IVF (we didn’t need it in the end). Secondly, I was in a position to choose the childcare that suited me - my job is rarely 9-5. It means to be in theory but if client wants to talk at 5:30 then you get on that phone and if they want an 8:30 meeting you do that too.
I’ve looked at women in the office who had that startled look if you approached them to talk at 16:45 because of potential childcare issues and I decided that I didn’t want to be one of them - no judgement at all. I just didn’t want to deal with the stress if I didn’t have to.
My mother lives abroad so that was out of question and DP’s parents are elderly so having a toddler for a day was not an option.
The childcare that allowed me that level of flexibility was a nanny. Couldn’t afford a whole nanny sadly (London wages) so went for nanny share. I chose a share in which the woman had a similar job to mine - we spoke and I felt understood. We have coverage 7:45 to 7 with flex either way if needed. DD is rarely in that long but if it’s needed it’s there.
Then DP had an offer of changing his work pattern to night shift and he took it on so he does all the drop offs and pick ups in the week so I can focus on work and if it’s a long day then it’s a long day. DP makes a decent wage but I’m the higher earner so it’s no brainer.
There are sacrifices. The childcare bill is sizeable. I can never go out in the week unless it’s Friday. If there is a work function, the nanny will take DD overnight as DP has to go to work, which can be expensive. And we are not having any more children. We can’t afford it without running ourselves ragged in the process. I made peace with that.
It can be done but the having it all thing comes at a cost. You decide what that cost is.