Any advice...

Hi I’m fairly new to Glow and I’ve read many interesting stories so I hope I can get some advice. My husband and I have been trying to conceive for almost two years already. We have had many tests done and everything comes back normal. My period is also regular some days late other days early but its never more more than two or three days late or early. Our doctor tells us there is no reason why we shouldn’t conceive if were both very healthy and already have one daughter. She says to give it time but I feel like its been to long and it’s depressing every time my period comes. It’s really stressing us out at this point especially every time my girl asks for a baby brother or sister. She’s almost twelve. Im twenty seven, I was a teen mom. At this point I’m not really sure what to do anymore my husband and I are just kind of giving up and starting to realize maybe we’ll only have just one child. I would really like some advice on what helped you to conceive? Ive done tests, taken prenatal vitamins, track my ovulation, lay low after sex. Used apps like these to track ovulation . We’ve tried to relax and let it happen we’ve gone out on vacations and just spend time together but nothing is working. Any advice will be greatly appreciated. Also does preseed really work? I should mention I had the Mirena for one year and half and got it removed. My periods came back the following month after removal. Not sure if that affected me in any way.