I had to stop BF all together with DD2 and DD3 for ttc reasons. Im just one of the people who dont get pregnant whilst BF as much as I wished I was. In the end the desire to get pregnant outweighed the desire to keep BF especially when I had better fertility signs within the fortnight of weaning so I felt like I was doing the right thing in that department.
Its now been 2months since I weaned DD3 and although she doesn't often look for them she still gets comfort in knowing they are there lol. It still makes me sad that she was forced of the boob IYKWIM not in her own time but that feeling definately gets better.
Goodluck with it. DD3 now sleeps all night whilst she didnt when BF so thats a good benefit. Hope you have a BFP really soon.