Trying to get pregnant🥺

We haven’t really been using OPK’s. We just go with my “predicted fertile window”.

We were pregnant last year of November but lost it in the early weeks, would this make it harder for me to get pregnant?

We have been having unprotected sex 3 days of my predicted fertile window so far. But had unprotected sex 5 days in a row now. Any tips on how I can help us fall pregnant other than using OPK’s? Or should I just get some OPK’s. lol anything else I can do tho?