Advice on TTC

Hello! I am new to this app so please bear with me! Me and and my husband have been trying to conceive for four months now. We are eating healthy, regular exercising, sex every other day, and still no luck. I know there isn’t anything to be worried about yet... but I was wondering if there were any helpful/ useful tips you could share? Also, does it help if you lay flat after sex to help sperm travel? Thank you in advance!