Feeling deflated

My fiancé and I have been TTC for just over 6 months. I know it’s not nearly as long as some of you, but I can’t help but feel so upset and defeated every time AF shows her face. What are some tricks and tips that have worked for people? I’ve purchased Pressed to try next month. But at this stage I’m willing to try anything. My FFIL gave a speech at our engagement party a year ago and said “now it’s time to start making us some grandchildren”. I didn’t think much into it, but recently he and his wife have been asking us when we are going to start to grow our little family. I can’t help but feel so heartbroken every time I say “haha, maybe after the wedding!” And just smile it off. Hellppp please!😰