Ttc need some advice

So I'm ttc but has been failing.. I have tried some tricks like keeping my hips elevated, sitting upside down for like 5 min. Sex isn't a issue because me and My Hubby have sex like 5 times a day and sometimes more and we don't waste any of the cum.. What should I do?? Do you think maybe we should go to a doctor and both get checked out to see if it's us or me or him?? Could to many MC stop the ability to get pregnant??