Out yet again. Try preseed?

Literally can’t stop crying. I’m not sure I can take going through this over and over. I’m not as strong as some of you ladies that have been trying for way longer than me. Told my husband we don’t have to try anymore but he tells me not to give up. But he isn’t the one taking all the OPKS and temping everyday and seeing the negative tests every month. I just don’t know what else to do. We Bd literally everyday during green week this month and still nothing. I’m grasping at straws and thought about buying preseed but I don’t think we have any problems with dryness down there. Do I still try it? We didn’t have any problems getting pregnant with our son. (1st month) so I figured we were fine but I’m afraid something is wrong