TTC Since April

Hi there sweet ladies! Need your feedback/advice please. My partner and I trying to conceive our second one since about April-May with a break in June-July. After our first baby my period started in Feb and became regular since. He is 43. I am 32. I have been using Easy Home Ovulation strips to make the right timing to make love🤗 and they seemed to be working and showing well when I was ovulating)).Also,I have been checking my cervical mucus and made sure it is egg-white to have sex around this time exactly.... Well, I don't think my plan is working that well. We were trying to do our thing😊 around one day before ovulation or actual day of ovulation or next day of ovulation. Well...no luck so far. That's about 6 month of doing it😁. Also, we are making love only one time during/around my ovulation time as he works so hard and so exhausted and sleep deprived all the time...he barely doesn't have any energy to do anything 🤣 Plus, he casually drinks two-three beers and sometimes a glass of orange juice with vodka...and his job is super stressful. So,I'm not sure if that influences his fertility...I just got my hormones checked and they are thankfully fine. What are your thoughts? For Lent right now he told he gave up drinking M-Th...maybe it will help. Should we be going to the doctor to check him out? Thanks for your help/advice!!!