No period this month??

Okay so I’m on birth control pill Lo Loestrin Fe. It’s suppose to make periods stop every 3 months, but I’ve been on it for about 7 months and I’ve been spotting every 2 weeks since I’ve started it (I’m finally about to get on another pill) and I am on the last pill and I haven’t started my “period” yet. I had sex last Saturday and I am just so worried!! I just need some peace of mind! I always take my pill perfectly and never missed any pills before.