Help TTC !!!

Brittany
Hey guys so I have been TTC for 4 months with no luck! I think I may be pregnant now, I've been having very light cramps right low, my boobs are sore. I'm very sleepy & very irritable. & I feel sick to my stomach a lot lately. But af is supposed to start in 7 days.. Could I be pregnant has this happened to anyone else? & any tips on TTC incase I'm not? All help would be greatly appreciated ! 😊👶🏼👶🏼😍