Whats wrong with us!??!!

Ugh I just don't understand I'm only 20 he's 25 we have no fertility issues and have been TTC for 7 months with no BFP im slowly starting to lose hope me and hubby want a baby more than anything right now and nothing is working this is making me feel terrible I'm in my fertile week so we will be BDing, using pressed,taking fertility pills, and mucinex. Keeping fingers crossed. Send prayers and ??? my way!!