Help!

I need some advice. I’ve fallen away from exercise the past few weeks and I hate myself for it. Anyone want to give good ways to really boost your motivation levels? I need exercise in my life! I eat well already, even when we go out to dinner I choose lighter/healthier options. I’ve cheated the last couple of days but... I’m back on track tomorrow. I have a gym at my complex, I can’t do home workouts because I lose motivation too quickly. I only need to workout 3-4x a week, too strenuous and my period stops and my fiancé and I are trying for a baby. I just need help on how to remotivate myself!