What is the most preferred birth control method?

My husband and I attended a family planning. I'm using pills right now but recently kasi laging umiinit ang ulo ko. Minsan naiinis nlng ako bigla sa asawa ko without reasons. Mabilis din ako mairita. Pero dati hindi naman ako ganito ka stress? Is it normal? Can you suggest something for me? I felt bad tlaga. First time mom here.