Where I used to work a guy broke his collarbone playing rugby, then his Achilles tendon, then his scapula I think? Anyway he was up for a renewed contract and dangerous sports were not allowed. He left shortly afterwards.
I understand feeling broody, but are you going to have another child every time you do? I'd say about fifty percent of my friends felt broody at the three month stage, and then stopped. I think your employers have been reasonable as they should, but another one SO soon, is pushing it.
I always remember a friend of ours set up his own very specialised business of overhauling a particular model of car engine, which have a huge following. He left the bigger company he had worked with, as they'd been caught not paying taxes, and they closed. One of the well trained receptionists came to interview for the job of his PA- my husband came home with the job requirements and it was so technical I couldn't understand a word of it, and if you ordered a part ZS432/5 instead of a ZS423/5 you were wrong, and the whole thing was very fast paced with people doing deals here there and everywhere so the PA was offered a great salary at the time,as shed basically done the job for ten years,took the job, then told him she was pregnant. he tried training other people but it was like medical training crammed into a year, and before she came back he went under. I was sickened.
Just because you CAN do something legally, doesn't make it right. Male or female. another woman at my work was a director and took numerous time off for infertility treatments (she told everyone). Every time she had a procedure she ended up being off for two weeks or so longer than expected. When she did get pregnant she had twins, and worked at half capacity- of course,these were precious babies. She went for tests and her blood pressure was up so she took two weeks off at home to rest, then took her two weeks holiday straight afterwards. I think that's wrong- I had my cruciate ligament done, came back to work, and worked my four weeks holidays I'd accrued. She had the babies all was fine, and she's since done the same thing. Noticed in passing shes no longer a director- don't know if that was her choice or not.
If you were my employee, I'd honestly worry about giving you a big project or more responsibility in case you became pregnant again. I had three and it's a HUGE jump from two ( I didn't work then and had no help at all at home). Unless there's a personal medical reason not to, wait, that's my long winded couldn't sleep probably nonsense response.